圖片來源：[Unsplash](https://unsplash.com/photos/jzTQVxCyKYs?utm_source=unsplash&utm_medium=referral&utm_content=creditShareLink)

 

近期國際間不斷發生加密勒索資安事件，受害產業橫跨政府機關、科技製造、交通運輸、軟體開發、衛生醫療、學術研究等。TeamT5 根據情資研究與數起資安事件調查成果，綜整近期針對型加密事件的面貌。

 

## 加密勒索攻擊演化
說到加密勒索攻擊，就不能不談到惡名昭彰的 WannaCry 病毒。WannaCry 病毒在 2017 年造成大規模感染，起因於該病毒針對 SMBv1 漏洞（CVE-2017-0143 ~ CVE-2017-0148）使用永恆之藍（EternalBlue）工具進行入侵。WannaCry 病毒入侵感染第一台主機後，會對主機硬碟和儲存裝置中的各式檔案進行加密，然後再利用 SMBv1 漏洞，主動擴散傳播到其他主機上，進而造成全球超過數百萬台電腦被加密感染。

![2104_1.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468173/2104_1_06555c9aff.png)
_圖一、WannaCry 加密勒索訊息_

 

然而，加密勒索攻擊在近幾年出現質變，逐漸從自動化攻擊轉為由駭客組織躲藏在背後操弄，受害對象也逐漸轉變成大型企業。駭客為避免受害者直接進行系統還原或重建，導致無法有效獲得贖金款項，進而開始竊取受害者的內部機敏資料，並藉由恐嚇公開資料，逼迫受害者繳付贖金。[ZDent](https://www.zdnet.com/article/ransomware-gangs-are-now-cold-calling-victims-if-they-restore-from-backups-without-paying/) 就曾報導 Sekhmet、Maze、Conti 與 Ryuk 等駭客組織存在「催債單位」，會主動與受害者聯繫，威脅若不繳付贖金將公開所竊取的機敏資料。

![2104_2.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468165/2104_2_a31b3d1dd4.png)
_圖二、常見的針對型加密勒索訊息_

 

## 針對型加密勒索
TeamT5 從情資研究與資安事件成果，歸納目前針對型勒索攻擊分為四大步驟，分別為入侵、水平移動、資料竊取與檔案加密階段。

![2104_3.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468166/2104_3_82b3ac0151.png)
_圖三、針對型加密勒索攻擊分解_

<style>
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 •入侵階段
</h3>

駭客入侵受害環境，主要是透過系統或設備的漏洞與社交郵件兩種管道。根據資安事件調查的結果，駭客所利用的漏洞為 ExChange ProxyLogon（CVE-2021-26858 與 CVE-2021-27065）與 SSL VPN（CVE-2019-11510、CVE-2019-11542、CVE-2019-11539、CVE-2019-11538、CVE-2019-11508、CVE-2019-11540 與 CVE-2019-11507）為主；而社交郵件則會搭配惡意連結，讓使用者點擊後不經意遭植入惡意程式，如 Drive-by-Download 攻擊手法。

![2104_4.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468166/2104_4_448ef9ff83.png)
_圖四、駭客利用 IE 漏洞（CVE-2020-0968）搭配 Drive-by-Download 手法植入惡意程式_

 

<h3>
 •水平移動階段
</h3>

駭客成功入侵受害環境搶下灘頭堡後，會開始進行後續入侵攻擊（Post-Compromise），目的是為了找到網域伺服器或檔案伺服器等高價值主機。在此階段，駭客會使用 Mimikatz 這類的密碼竊工具取得主機上的帳號密碼，並試著透過各種網路掃描工具，如 nbtscan、TCP Scan 或 ADFind 等駭客工具，找到其他可入侵的內部主機。接下來，駭客會嘗試使用先前取得的帳號密碼登入，其登入方式包含廣為人知的 PsExec 工具程式，最後在受害主機上建立後門程式，以便駭客長期連入控制之用，近期常見的後門程式多為使用 Cobalt Strike 框架建立 Stager 或 Beacon 等後門管道。

![2104_5.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468165/2104_5_9b984c5e4c.png)
_圖五、登入驗證程式 lsass.exe 遭到 Mimikatz 注入並竊取帳號密碼_

 

![2104_6.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618471005/2104_6_bba2dd7079.png)
_圖六、駭客透過 Powershell 執行惡意語法植入 Cobalt Strike Stager_

 

<h3>
 •資料竊取階段
</h3>


駭客成功入侵至網域伺服器或檔案伺服器主機後，會嘗試從中取得受害單位內部的機敏資料，如產品開發、客戶資訊、財務資訊等機敏檔案。下圖七為 TeamT5 於某事件中偵測到駭客利用 WinRAR 壓縮工具，試圖遠端加密壓縮特定資料夾內容。

![2104_7.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468165/2104_6_3c1ab71659.png)
_圖七、駭客正在加密壓縮機敏資料_

 

<h3>
 •檔案加密階段
</h3>

當駭客成功取得受害者內部的機敏資料後，才會肆無忌憚地開始進行大規模主機加密行動。根據 TeamT5 實地調查的案例，駭客會在各主機植入加密程式，等到取得機敏資料後才透過 AD GPO 大量且快速地執行檔案加密攻擊，且駭客開始採用合法的檔案加密程式進行惡意加密攻擊。如下圖畫面，攻擊者早在 7 月就已植入加密程式，但是等到 12 月才發動加密攻擊，代表攻擊潛伏期長達數個月之久。且駭客所使用的加密程式 bcl.exe 為 Jetico 公司所開發的商用資料加密軟體，該軟體本意是為了達到資料隱私保護之用，卻被駭客利用成為加密勒索攻擊的一環。

![2104_8.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618468166/2104_7_98ce84dfb8.png)
_圖八、長達數個月潛伏期的加密勒索攻擊行動_

 

## 轉換一下您的防禦思維
看到現在，各位應該發現針對型加密勒索攻擊是個細膩且漫長的攻擊行動，為了不打草驚蛇讓受害者早早發現，駭客開始使用許多合法商用軟體替代自行開發的惡意程式。在許多防禦機制都在強調如何阻斷檔案加密的當下，卻忽略了我們有數周至數個月的時間可以發現駭客的潛在威脅，又或是如果駭客使用合法程式來掩護非法攻擊，該如何有效偵測及識別，乃至於阻擋呢？

或許我們該轉換一下防禦思維，如果能在駭客入侵初期的潛伏階段就能有效識別，進而修補漏洞、清除惡意程式，阻斷駭客持續控制內部受害環境，便能避免未來發生大規模檔案加密的攻擊。

更多加密勒索攻擊防護，敬請期待 TeamT5 在 [CYBERSEC 2021 臺灣資安大會](https://teamt5.org/tw/posts/cybersec-2021/)上即將獨家公開的全新升級威脅捕網！

刻在你我心底的痛！可怕的加密勒索攻擊

*Image courtesy of [Pixabay](https://pixabay.com/illustrations/security-hacker-web-security-data-5614016/)

In March 2021, another REvil's attack was announced. Targeting the computer giant Acer, the actors behind the ransomware asked for 50 million dollars, the highest ransom they have demanded so far. Acer was not the only victim of the notorious ransomware. Debuted in April 2019, REvil has attacked hundreds of high-profile agencies in multiple sectors. In 2020, REvil has earned more than 100 million.[1] In this report, we will introduce the basic profile of REvil and share the techniques they used in operations. 


## What is REvil 

REvil, a.k.a Sodinokibi, is a Ransomware as a Service (RaaS) operation deployed by a Russian cybercrime group named GOLD SOUTHFIELD or Pinchy Spider. The group is believed to be based in Russia, as it does not attack organizations in Post-Soviet States, and refuse to cooperate with English speaking cyber criminals.[2] 

REvil was highly possible the successor of GandCrab, another notorious ransomware, because of code similarities and REvil's active operations right after GandCrab's retirement.[3]

![REvil_1.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621845336/R_Evil_1_035a848033.png)
_Figure 1: The timeline of REvil's appearance and GandCrab's retirement_

 

![REvil_2.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621845337/R_Evil_2_804b2676dc.png)
_Figure 2: REvil and GandCrab's similarity on string decoding_

 

![REvil_3.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621845337/R_Evil_3_e9724a2992.png)
_Figure 3: REvil and GandCrab's similarity on building ransom wallpaper_

 

Numerous campaigns attacking multiple sectors were observed all over the world. The REvil actors has attacked local governments, giant law firms, multinational retailers, etc. The highest ransom they have asked was 42 million for the law firm but was now surpassed by the 50 million Acer attack. (References for the events, please see the end of this page.[4])

 

![REvil__4.jpeg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621845337/R_Evil_4_56bc894487.jpg)
_Figure 4: The timeline of REvil's notorious attacks_

 

## The Ransomware as a Service model (RaaS)

The actors of REvil adopt the Ransomware as a Service business model. In this model, Ransomware developers are responsible for development and maintenance of the ransomware, while the groups of cyber criminals, named affiliates in this model, are responsible for accessing victims' system to distribute the ransomware. The business model allows cyber criminals who are not capable of developing their own ransomware to buy the service on dark web and deploy ransomware attack. 
 
Through this model, REvil actors provide REvil or the customized version of REvil to their affiliates. After they successfully breached victims' systems, REvil actors will ask for ransom by themselves, providing the ransom payment link. After the collection of money, their affiliates will receive 60% to 75% of the profit. Moreover, the actors also provide other paid services, such as money laundering assistance for the affiliates. 

![May_blog_3.jpeg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620634812/May_blog_3_71c24e74f2.jpg)

 

## Tactic, Techniques and Procedures
### Initial Access
For REvil, different affiliates may use different methods for initial access. The ransomware is now distributed primarily through compromised RDP sessions (65%), phishing (16%), and software vulnerabilities (8%).[5] However, a supply chain attack distributing REvil was also observed.

REvils' actors said in an interview that they used brute force attacks to compromise RDP sessions.[1] As for phishing emails, the cyber criminals have once disguised their email as a new booking from "booking.com". They also exploit vulnerabilities. In fact, REvil's debut was exploiting the Oracle Weblogic vulnerability, CVE-2019-2725. Moreover, the actors are able to deploy new vulnerabilities after its disclosure. For example, the group used the recent disclosed Microsoft Exchange server vulnerability to access Acer's system.

The most astounding technique they deployed is supply chain attack. Around June 2019, a WINRAR distributor site in Italy was hacked.[6][7] The software downloaded from the site at that time was not the WINRAR installer but the REvil installer. Although no public announcements showing that any company was infected in this attack, the successful replacement shows that their affiliates were able to deploy a supply chain attack. 

Apart from their various method on initial access, the cyber criminals also adopted several unique techniques. For example, REvil used Elliptic-curve Diffie-Hellman key exchange to encrypt files, while other ransomware often used RSA, Salsa20 or AES to do so. This method is more efficient as it used shorter key and is difficult to decrypt. 

 

## The Effective Methods for Ransom Collection
Nowadays, as ransomware attacks become a serious problem, most companies have learned to back up crucial data in case they are hit by a ransomware. However, ransomware actors develop several new methods to ensure that the victims will pay the ransom, including Double-extortion, VoIP calling, and DDoS attack.

- "Double-extortion"
The actors disclose or sell the data of the company if the company is not willing to pay ransom. This method was first introduced by Maze, another notorious ransomware, and currently almost all ransomware actors have adopted this method, and so as REvil. Starting from January 2020, the group runs their own site "Happy Blog", where they post data extorted from their victims.

- Voice over Internet Protocol (VoIP) calling
In February 2021, they announced that they are now offering Voice over Internet Protocol (VoIP) calling and DDoS attack service for their affiliates to make pressure on their victims.[8] They stated that they will call the media or their victims' business partners, telling them about the attack. 

 

## Detect and Defense
For prevention, it is always crucial to be aware of spamming emails. Nowadays, spamming emails is still the most popular and effective method to access victims' computers. 

In addition, keep an eye on new exploits and updates is also important. Ransomware groups usually are not capable of discovering 0-day exploits by themselves, but they will exploit the disclosed vulnerabilities and attack those who have not updated their system. Thus, keep computers updated and patched systems immediately after the disclosure is essential for preventing ransomware attack.

Furthermore, as the REvil business grows, the actors behind has posted on dark web to recruit more affiliates for their operations. Thus, more attacks from the group is expected. TeamT5 will keep following the ransomware and provide up-to-date information of the notorious ransomware.

To efficiently prevent ransomware attacks, TeamT5 offers a total solution for enterprise protection. Our unique ransomware containment technology is proven to successfully block many types of ransomware, which can detect and stop malicious ransomware immediately. And even restore encrypted files from the backup.

For more information about TeamT5 Ransomware Prevention total solution, please contact: <sales@teamt5.org>

 

## References

[1] https://therecord.media/i-scrounged-through-the-trash-heaps-now-im-a-millionaire-an-interview-with-revils-unknown/

[2] https://www.advanced-intel.com/post/inside-revil-extortionist-machine-predictive-insights

[3] https://www.zdnet.com/article/gandcrab-ransomware-operation-says-its-shutting-down/

[4] Texas Municipalities - https://www.zdnet.com/article/at-least-20-texas-local-governments-hit-in-coordinated-ransomware-attack/; Backup Company - https://www.zdnet.com/article/ransomware-hits-hundreds-of-dentist-offices-in-the-us/; Foreign Exchange Company - https://www.bbc.com/news/business-51017852; US Law Firm - https://www.zdnet.com/article/ransomware-gang-asks-42m-from-ny-law-firm-threatens-to-leak-dirt-on-trump/; Pan-Asia Retailer - https://www.bleepingcomputer.com/news/security/pan-asian-retail-giant-dairy-farm-suffers-revil-ransomware-attack/

[5] https://www.csoonline.com/article/3597298/revil-ransomware-explained-a-widespread-extortion-operation.html

[6] https://www.drcommodore.it/2019/06/20/hackerato-winrar-it-malware-al-posto-del-programma/

[7] https://www.bleepingcomputer.com/news/security/sodinokibi-ransomware-spreads-wide-via-hacked-msps-sites-and-spam/

[8] https://www.bleepingcomputer.com/news/security/ransomware-gang-plans-to-call-victims-business-partners-about-attacks/

Introducing The Most Profitable Ransomware REvil

為了增進大眾對於 APT 攻擊族群的認識，長期進行駭客追蹤研究的 TeamT5 杜浦數位安全，藉由藝術博物館（MOMA）作品介紹的形式，讓參觀者能夠感到興趣，並簡單認識這些 APT 族群的特性。

在資安新聞或報告中，可能常常看到某些攻擊事件是由特定駭客組織所為，然而，對於這些駭客組織本身的了解，可能多半不夠深刻，是否有更平易近人的方式，增進大眾對一些駭客組織的認識呢？

事實上，網路攻擊日益複雜，這些有組織的駭客團體，花了很多心力瞭解可能是攻擊目標的你我，但是，相對地，整個公眾對這些駭客組織有概括性的了解嗎？長期進行駭客追蹤研究的 TeamT5 杜浦數位安全，在本月舉行的 2021 臺灣資安大會展區上，特別用上類似藝術展覽的形式，讓參觀的人能從不一樣的視角，認識幾個不可不知的APT攻擊團體，掌握其特性。

在這樣的展區中，TeamT5 打造出有如現代藝術博物館（MOMA）的布置場景，擺放著4件作品，將原本抽象的攻擊族群，具現為某種裝置藝術品來展示，同時，一旁的牆面上，也有著對於 APT 族群一詞的中英文介紹，說明每個 APT 族群都有自己的地域性與慣用的攻擊手法，以及經常鎖定的國家與產業。

在現場擺設的這些創作中，連結的 APT 攻擊族群共有 4 個，包括：Lazarus、HUAPI、AMOEBA 與 Nian。目的就是希望將這些壞人（駭客組織）的特徵實體化，讓企業用戶能夠知道，他們到底是面對什麼樣的敵人，這些壞人有什麼樣的特徵或能力。

[點此閱讀完整報導](https://www.ithome.com.tw/news/144717?fbclid=IwAR3EmZoOA_HlreIov_84clZasdSfEH7HqPTZldHK39raXBd6pwgkmYsnw4U)

【臺灣資安大會直擊】TeamT5 出奇招，將抽象的 APT 駭客組織化身展覽作品

圖片來源：iThome

關於 REvil 勒索軟體與其背後組織的來歷與特性，資安業者 TeamT5 近期統整多方面曝光資訊，讓國內對於此攻擊族群可以有更深入的瞭解。該組織採 RaaS 模式經營、最多擁有 80 個合作夥伴，且整體族群手法多元。

今年上半年，臺灣大型科技業者接連傳出遭遇勒索軟體攻擊，並被駭客要求支付高額贖金，在 3 月下旬到 4 月下旬期間，已曝光的業者就包括：臺灣電腦大廠宏碁，封測大廠日月光集團旗下孫公司 Asteelflash Group，以及筆電代工大廠廣達。

而這三起事件的共通點，背後都是同一駭客組織所為，其中日月光集團孫公司事發後已公布調查結果，是遭 REvil 勒索軟體攻擊，至於宏碁與廣達的事件，他們雖沒有說明是哪支勒索軟體，但有不少資安專家都明確指出：應是遭到 REvil 勒索軟體攻擊。

到底這個 REvil 的身分與來歷是什麼？在今年臺灣資安大會上，長期追蹤研究駭客活動的 TeamT5 杜浦數位安全執行長蔡松廷，特別針對 REvil 的背景，將目前已經曝光的資訊做出全面統整，透過對此犯罪組織的側寫與描述，幫助臺灣資安界對 REvil 背後的攻擊族群，能有更全面的了解。

[點此閱讀完整報導](https://www.ithome.com.tw/news/144900)

【臺灣資安大會直擊】近期臺灣大型企業接連傳出遭 REvil 攻擊，TeamT5 徹底剖析

News

全臺最大的年度資安盛會 CYBERSEC 2021 臺灣資安大會，將在 5 月 4 日至 5 月 6 日於南港展覽二館超規格登場！今年，TeamT5 杜浦數位安全很榮幸擔任大會的鑽石級贊助夥伴，面對無所不在的網路威脅，以及不斷進化、「數位轉型」的勒索軟體攻擊，身為臺灣本土資安廠商，我們將持續為大家洞悉網路威脅，精準防駭。

> 節目單在手，講座不漏聽：完整攤位限定講座節目單[點此下載](https://lihi1.cc/Pi626)。

 

# 企業防駭，交給 TeamT5

![展攤位置圖_改搜索實境.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619071416/_497fed2229.png)

 

## #L03 主攤位 | TeamT5 杜浦數位安全

無論是面對駭客威脅想找解方、對勒索軟體束手無策，還是有各種資安防護的疑難雜症 ... 別駭怕，快來 **#L03** 攤位找 **TeamT5 杜浦數位安全**！

除了我們獨特的威脅解決方案，現場還有產品 Demo、攤位限定講座、資安小遊戲，以及徵才駐點面談等精彩內容，錯過再等明年！

 
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 •臺灣資安大會首次登場，TeamT5 MoMA
</h3>

他們是誰？來自哪個國家？好奇總是躲在暗處、神秘莫測的駭客攻擊族群究竟長什麼模樣嗎？

誰說資安艱澀又無聊，跟著 TeamT5 的視角，帶您一同探索當代 APT 攻擊族群的神秘世界。

 

*更多關於 TeamT5 MoMA 的展覽訊息，請隨時鎖定 TeamT5 [Facebook 粉絲專頁](https://www.facebook.com/TeamT5.org)。

 


<h3>
 •TeamT5 攤位限定講座
</h3>

L03 主攤位的限定講座，涵蓋四大精彩主題：**加密勒索攻擊防護**、**駭客情資追蹤**、**威脅狩獵指南**、**企業資安防護一次到位**，多元內容、一次滿足！我們也特地邀請到資安產業的專家，與大家分享資安海外拓展的成功經驗，以及對抗勒索軟體的應對之道，大咖雲集，不聽可惜！不只多場專業講座，我們也將在 CYBERSEC 2021 臺灣資安大會獨家公開 TeamT5 威脅狩獵解方 [ThreatSonar](https://teamt5.org/tw/products/threatsonar/) 的全新功能，敬請期待更強大、全面升級的威脅捕網！

![facebook_Post_0504.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619518646/facebook_Post_0504_188c94772c.png)

![facebook_Post_資安海外拓展交流.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619751063/facebook_Post_1f01f9d820.jpg)

![facebook_Post_0505.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619518646/facebook_Post_0505_6ab020f1f5.png)

![圖片5.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619884408/5_7cfb9d9ff9.jpg)

![facebook_Post_0506.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619518646/facebook_Post_0506_e691090746.png)

 

每日中午時段還有 **TeamT5 Show 一下**，安排 TeamT5 MoMA 攻擊族群博物館限定導覽、搜索實境遊戲「1337 Operation」關主現身說法，獨家公布破關彩蛋，以及「資安 Show Time」問答賽，歡迎各位前來參觀同樂。

![facebook_Post_0504-0506.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619518646/facebook_Post_0504_0506_37a651b222.png)
 
 

## #CP01 Playground | 1337 Operation 搜索實境
 
TeamT5 團隊精心設計，融入真實情節的搜索實境駭客版，首次於資安大會 CYBERSEC Playground 亮相！
 
歡迎大家到 **#CP01** 遊戲攤位大展身手，1337 Operation 搜索實境，TeamT5 探員等你來挑戰！
 
*更多資訊請見[臺灣資安大會官網](https://cyber.ithome.com.tw/2021/playground#teamT5)。
 
![1337.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1617477157/1337_6a0024e9ad.png)
 
 

## #CT11 Cyber Talent Connect | 徵才專區

今年臺灣資安大會加碼增設的 Cyber Talent Connect 專區，透過培育計畫、主題講座、職涯互動及企業徵才，協助在學學生與社會新鮮人更了解業界人才需求，以及進入資安領域的職能發展。

TeamT5 杜浦數位安全在 **#CT11** 攤位，歡迎有志進入資安產業的朋友們來參觀了解。也歡迎大家來 Cyber Talent 講座，聽聽我們的企業分享與最新市場徵才趨勢，**#L03 **主攤位亦設有** TeamT5 徵才駐點**，對我們最新職缺有興趣的朋友，記得到主攤位來逛逛喔！

![facebook_Post_Turkey.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618837343/facebook_Post_Turkey_291def5611.png)

 

## TeamT5 大會主題議程

TeamT5 強大講師陣容將再次登上大會主題演講，除了去年好評不斷的 CyberLAB 資安攻防演練工作坊重出江湖，還有今年最受矚目的大會主題論壇「701 漏洞研究室」與「目標式勒索威脅論壇」，我們的「TeamT5 Camp 大師帶你學」系列資安入門課程，也搬上資安大會，帶大家深入淺出探索資安最新技術與趨勢。更別錯過 TeamT5 執行長蔡松廷（TT）的精彩主題演講與 Free Talk 喔！

 

** 1. 【Keynote：跟阿中學勒索軟體防疫之道】**

台灣防疫成功，全世界有目共睹。防禦網路攻擊，其實與防疫有許多微妙的相似之處。這場演講，TeamT5 執行長蔡松廷（TT）會跟大家分享，我們如何從防疫中學習到對抗勒索軟體的策略，以及我們如何實作出有效的解決方案。

![facebook_Post_TT_Keynote.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618837343/facebook_Post_TT_Keynote_a52a0312e1.png)

 

** 2.【貓味，你坐阿！】資安鑑識五連鞭！**

APT 攻擊手法複雜多樣，企業受駭也不知該從何找起入侵來源。TeamT5 工程師 Zet、Tom 和 Jason3e7 將在本場講座，帶大家從資安事件調查的實戰演練，拼湊攻擊事件原貌。

![facebook_Post_Zet+Tom+Jason3e7.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619077480/facebook_Post_Zet_Tom_Jason3e7_515b316d8c.jpg)

 

** 3.【701 漏洞研究室】**

白衣渡江，貓味不講武德？這題目有看沒有懂？TeamT5 最幽默的講師群，我們的資安工程師 Tom、Jason3e7 和 Peter，將為大家帶來一場詼諧又知識量爆棚的精彩講座！

![facebook_Post__Tom+Jason3e7+Peter.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1617263321/facebook_Post_Tom_Jason3e7_Peter_37d9599950.jpg)

 

** 4.【大大們的 Free Talk】**

來聽聽 TeamT5 執行長 TT 大大，分享（碎念）本人的資安產業經驗，一起聊聊台灣資安廠商的美麗與哀愁。

![facebook_Post_TT_FreeTalk.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619751063/facebook_Post_TT_Free_Talk_956eae9ab2.jpg)

 

** 5.【TeamT5 Camp 大師帶你學】**

TeamT5 Camp 的講師群也在資安大會開課囉！整整一天、三堂滿滿的資安入門課程，聽一天課抵十年，名額有限，記得把握機會到現場報名。

![facebook_Post_Kenny.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618837342/facebook_Post_Kenny_f343a32e2e.png)
![facebook_Post_Still.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618837343/facebook_Post_Still_a8b296d6f9.png)
![facebook_Post_zha.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1618837343/facebook_Post_zha_dd9d531244.png)

 

** 6.【一言不合就公開！REvil 勒索不講武德】**

大會主打主題論壇之一，讓 TeamT5 執行長 TT 為大家揭秘「2020 年度勒索界首富」- REvil。

![facebook_Post_TT_一言不合就公開！ REvil 勒索不講武德.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1619751242/facebook_Post_TT_R_Evil_78dd109ab5.png)

 

> 更多大會議程資訊 & 展攤活動即將公開，敬請隨時鎖定 TeamT5 [Facebook 粉絲專頁](https://www.facebook.com/TeamT5.org)。

【CYBERSEC 2021 台灣資安大會】企業防駭，交給 TeamT5

上週美國輸油管系統營運商遭到勒索軟體攻擊，暫停所有管線運作，可能造成燃料短缺而導致油價上漲，引發市場擔憂，而近年層出不窮的勒索攻擊事件，日益嚴重，目標式攻擊手法推陳出新，已非傳統防禦方式所能抵擋，有效的資安防護成為市場迫切之需。

TeamT5 杜浦數位安全（以下簡稱 TeamT5）創辦人兼執行長蔡松廷表示：「面對進階型的威脅，防禦會是比較困難的，資安最難的地方在於要做的事太多了，做對了就會有效，如果做錯方向，對於防護就沒有效果。 TeamT5 由端點切入，提供 MDR（Managed Detection and Response，威脅偵測應變）從雲端偵測異常並通報，比較特別的是，TeamT5 團隊做很多情資研究，透過對攻擊者的了解，可以預測到他的下一步，讓客戶知道什麼防護要先做，做真正對的方向。」

[點此閱讀完整報導](https://ctee.com.tw/industrynews/technology/457958.html?fbclid=IwAR02bz0y_3a5APIwS6PhC5HpJnMTW1YJ-CF8igPda-hxE8r-OAYXHoIQbEQ)

【工商時報】又一重大勒索軟體攻擊 TeamT5：資安防禦做對方向是關鍵

一年一度的 CYBERSEC 2021 臺灣資安大會於 5 月 4 日至 6 日在南港展覽二館圓滿落幕，TeamT5 杜浦數位安全（以下簡稱 TeamT5）今年以三大重點參展：「最佳夥伴」、「對抗勒索」、「情資決勝」，在網路攻擊不斷轉型、進化的今日，TeamT5 將成為您最可靠的盟友，共同對抗網路威脅。

![AX1_9828.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621322561/AX_1_9828_23b4ad3bf5.jpg)
_TeamT5 杜浦數位安全提供對抗勒索攻擊的最佳解方，以及研究量能最豐富的威脅情資，幫助企業對抗網路威脅_

 

面對近年來國際間頻繁發生的加密勒索資安事件，攻擊手法與目標對象逐漸轉型，使得勒索攻擊成為當前企業最擔憂的網路威脅。TeamT5 長年研究、追蹤進階持續性攻擊（Advanced Persistent Threat, APT），在本次資安大會上，我們獨家公開全新升級的 ThreatSonar 威脅補網，提出對抗勒索攻擊的防護解方。

![AX0_6835.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621322561/AX_0_6835_790f9537f0.jpg)
_TeamT5 首席架構師 Nanika 向大家介紹 ThreatSonar 全面升級的勒索防堵策略_

 

TeamT5 提出「勒索全面防堵」策略，我們的 ThreatSonar 威脅狩獵解決方案，能夠有效偵測 APT 針對型攻擊，與既有資安解決方案互補而非取代，成為企業在資安攻防的強力守護神。以事件處理的角度來看，勒索軟體與 APT 攻擊事件幾近相同，唯一不同之處在於攻擊者會藉此勒索受害者、獲取贖金，唯有全面性解決，才能讓人員更有效進行處理，在防堵的同時擬定執行策略。

![P_20210506_133205.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621324929/P_20210506_133205_1805110f15.jpg)
_TeamT5 技術長暨首席分析師 Charles 與 IR 專家 Zha0，介紹利用威脅情資掌握攻擊者動向的重要性，以達到超前部署的防護_

 

此外，今年最受矚目的參展亮點還有「TeamT5 MoMA 攻擊族群博物館」，以及 TeamT5 獨家打造的「1337 Operation」搜索實境遊戲。蔡英文總統與各部會長官也親臨攤位參觀，由 TeamT5 執行長蔡松廷（ TT）帶領導覽，介紹我們如何以更貼近、淺顯易懂的方式，將神秘的駭客攻擊族群具象化為藝術品。更特別的是，我們將攻擊族群博物館連結搜索實境遊戲關卡，以逼真的勒索軟體事件調查遊戲情境，讓玩家實際體驗企業受害與追查駭客的過程。

![經濟部工業局提供.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621326181/_e8ae0b779f.jpg)
_執行長蔡松廷向蔡英文總統與各部會長官們導覽「TeamT5 MoMA 攻擊族群博物館」，介紹我們如何透過將抽象的攻擊族群具象化為藝術品的方式，讓大家更深入了解 APT 族群的特性。（圖片來源：[經濟部工業局](https://www.facebook.com/moeaidb/photos/pcb.1996144607216335/1996143887216407)授權使用）_

![IMG_0462.JPG](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621326184/IMG_0462_fb0cf9e235.jpg)
_TeamT5 獨家設計的搜索實境遊戲，只要一支手機，玩家就可以化身探員，實際體驗追查駭客的過程_

 

為期三天的展會中，TeamT5 透過大會多場精彩議程、CyberLAB 技術課程，以及我們精心策劃的攤位主題限定講座，帶給所有前來參展的來賓充實的技術分享與交流。兩場 TeamT5 專家座談「資安海外拓展交流」和「難纏的勒索軟體與對抗經驗」，也邀請多位資安專家與研究人員到場分享相關經驗與知識，獲得許多與會來賓的正向回饋。

![IMG_0336.JPG](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621322565/IMG_0336_5c72d3f9f7.jpg)
![AX0_7203.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1621322561/AX_0_7203_f8a4840a25.jpg)
_TeamT5 獨家邀請到多位資安專家，在兩場攤位限定專家座談中，和大家分享資安海外拓展以及勒索軟體的對抗經驗，吸引許多參展來賓參與討論交流_

【臺灣資安大會】TeamT5 對抗勒索，攻擊全面防堵

近年來，為了防範進階持續性攻擊（Advanced Persistent Threat, APT），許多資安業者相繼投入端點防護領域，進行端點的事件分析，以助於定位威脅所在與制定因應措施。但多數的作法，大多是依照偵測工具內建規則，決定該事件的風險高低程度，意即以「一套標準」套用於所有的企業客戶。

 

# 風險防護也可以「客製化」

針對資安防護，各企業領域要求的重點或許略有不同。在端點防護上，具體完整的 APT 攻擊事件，無庸置疑須視為高度威脅優先處理。除此之外，尚有許多其他風險事件（例如違反企業內部規範），各家企業實際上也具備不同的需求。

企業資安防護需求有異，TeamT5 的 ThreatSonar 惡意威脅鑑識分析平台提供了最大的彈性，推出最新功能「風險訂閱」（Threat Subscription），客製化您專屬的威脅防護。

 

## 您在乎的威脅，優先追蹤

透過 ThreatSonar 風險訂閱功能，企業用戶可以依照公司本身的防範策略原則，主動決定要優先針對哪些風險事件進行防護與告警，協助企業確保自家資安防範原則（Policy）的落實管理。舉例來說，公司內部是否有同仁的電腦（被）安裝了 VPN 遠端連線工具？又或是否有任何中國製軟體在企業內使用？ThreatSonar 都能替您把關，偵測威脅、發出告警。

 

![sonar detect.PNG](https://res.cloudinary.com/dvgomg5gh/image/upload/v1615369015/sonar_detect_0a6630d5c7.png)
_圖一、訂閱 VPN 安裝風險事件與告警_

 

有了 ThreatSonar 風險訂閱，我們為每位客戶打造專屬的風險防護，不再「一套規則打天下」。

 

## 自己的風險等級，自己決定

透過 ThreatSonar 風險訂閱，我們可客製化為企業把關風險事件，但是風險項目眾多、資安人力有限，且風險等級也可能隨著公司政策調整而改變。

有鑑於此，除了訂閱風險項目，ThreatSonar 風險訂閱功能更提供「自訂風險等級」支援，資安人員可以自行決定風險等級，例如可設定哪些高風險攻擊事件發生時，需要立即處理、哪些屬於可疑事件，需進一步調查、哪些風險事件僅為低風險等級（例如，同仁的資訊設備使用方式違反公司資安規範）。

風險等級可自行決定且隨時調整，提升企業資安防護的彈性與便利性，企業可以更有效率地分配內部資安人力，依照不同風險等級進行相關處理。

 

## 資安事件即時告警，事件調查不再複雜

在過去，資安人員若要調查企業是否已遭到遠端存取木馬程式（Remote Access Trojan, RAT）入侵，通常需要確認幾項檔案特徵，例如風險檔案是否嘗試列舉檔案或行程（Process）、是否正在進行網路連線等，當上述特徵行為皆存在，就可以確認端點已遭到木馬程式攻擊。然而，需要考量的特徵非常多，且這些行為可能分布於數個風險檔案上，使得整體事件調查相對費時。

透過 ThreatSonar 風險訂閱功能，我們幫您組合多個特徵行為，針對單一資安攻擊事件發出明確且即時的告警，不只有效降低資安人員調查的負擔，又可即時回應與處置重要資安事件。

 

**ThreatSonar 風險訂閱功能** 即將上線，請即刻與 TeamT5 聯繫，訂製您的專屬風險防護！

> 業務聯絡：<sales@teamt5.org>

ThreatSonar 風險訂閱－訂製您的專屬風險防護

**By TeamT5 杜浦數位安全 技術長 李庭閣 Charles Li**

2020 年被公認為充滿混亂與災禍的一年。各式各樣的大事件諸如新冠肺炎、中亞東歐台海等地的地緣政治衝突、英國脫歐、美國總統大選都將世界各地的人們帶向跟過去截然不同的生活。TeamT5 在過去一年中持續幫助受到國家力量支持的針對性攻擊行動（或稱 APT 攻擊）所受害的單位。同時間 TeamT5 的威脅情資團隊也主動追蹤 APT 攻擊者的各類行蹤。跟真實世界相比較，網路世界的混亂情況並不亞於我們於現實世界所見，同時網路世界的衝突有很大一部份是真實世界的映射或延伸。本篇文章將探討 TeamT5 在 2020 年所觀察到的台灣威脅態勢。

在本篇文章中，我們首先會為您介紹我們在 2020 年所觀察到的重大趨勢，包含了：

- APT 攻擊的演進，網路間諜不再是唯一的攻擊手段
- 供應鏈攻擊成為 2020 年 APT 攻擊的主要攻擊方式之一
- 由新冠肺炎所引發的網路攻擊

接著我們會針對所觀察到的攻擊行動進行分析，試圖以產業別以及攻擊族群視角來進行網路威脅情資的剖析。文章的最後則是我們對如何應對網路攻擊不斷變化的建議作為總結。

 

### 網路間諜不再是唯一的攻擊手段

2020 年所公開的網路攻擊中，影響最深遠的當數中國 APT 攻擊者於五月時針對多個能源產業公司所進行的勒索軟體攻擊 [1]。TeamT5 研究顯示，這是一個來自中國惡名昭彰的 APT 攻擊族群，規畫已久的攻擊行動。這個行動究竟是攻擊者單純以獲取金錢為目的所發起的勒索行動，抑或是以勒索軟體為掩護的政治嚇阻行動（時值 520 台灣總統上任前），背後的答案依舊成謎。無論如何，本次的攻擊行為已為中國對台 APT 攻擊行動劃下新的里程碑：中國 APT 已針對台灣進行二十年以上的攻擊，但行動範圍都維持在竊取機密為目的而進行的網路間諜行動，這次攻擊意味著攻擊者將開始採用更多元的戰術來對台灣進行網路打擊行動。

另一個發生在 PTT BBS 論壇上的攻擊行動可以佐證我們的臆測：在 2020 年七月，TeamT5 追蹤了一連串的 BBS 爆料貼文，試圖詆毀台灣政府與軍方的形象，攻擊者使用了多個境外跳板 IP 位址來試圖隱藏他們的來源，然而 TeamT5 的情資資料庫顯示，其中一個來源 IP 曾被某個鎖定台灣已久的 APT 攻擊族群所使用；無獨有偶，我們也獲得某訊息來源指出，該 APT 族群正是隱身在此次行動背後的攻擊者。我們相信這兩個事件正是一個警訊，告訴我們中國 APT 族群正在嘗試各種過去沒使用過的手法來做更多樣性的攻擊行動。

 

### 供應鏈攻擊成為 2020 年 APT 攻擊的主要攻擊方式之一

TeamT5 曾在過去示警過供應鏈攻擊手法的危險性 [2]，研究顯示它在 2020 年已經成為 APT 攻擊的一種主要入侵手法之一：2020 年十二月被揭露的 SolarWinds/SUNBURST 攻擊行動無疑是當前最成功的案例之一，受害目標包含了許多美國高層政府部門，全球前五百大公司，甚至數個資安廠商本身也在本次攻擊中被攻擊者攻陷，它的手法精細而行動縝密，以致於目前仍無法掌握整個攻擊全貌。在台灣，TeamT5 也觀察到至少三波的攻擊行動使用了類似的手法：攻擊者先針對服務供應商進行滲透，再進一步利用供應商的產品或服務當跳板來直接進入終端用戶，包含政府部門或其他各產業的公司。前兩波的攻擊行動已於八月間被法務部調查局所公開揭露 [3]，而第三波攻擊行動仍在調查中。我們目前已觀察到數十家甚至上百的台灣公私單位被這些行動所成功滲透，而且至少有三個來自中國的 APT 族群參與其中。

 

### 由新冠肺炎所引發的網路攻擊

第三個攻擊趨勢則為新冠肺炎所趨使的網路攻擊行動。隨著新冠肺炎疫情爆發數週內，TeamT5 就觀察到有國家支持的網路攻擊者開始疫情相關的情報蒐集；隨著時序進入下半年，攻擊者的目標開始轉向疫苗發展資訊的蒐集，可以看出網路攻擊行動隨著現實世界改變的趨勢。在台灣，TeamT5 也分析了數個以新冠疫情為主題所進行的攻擊行動，甚至有數波針對醫療相關部門的針對性攻擊行動。我們相信只要疫情尚未消散的一天，相關的攻擊行動就會持續進行。

TeamT5 威脅情資團隊在 2020 年分析了近百個來自中國的 APT 攻擊。統計結果顯示，政府和軍方部門仍為最大的攻擊目標，相對應的攻擊事件超過了總數的四分之一，幾乎每個在台灣地區有活動的 APT 族群都會嘗試攻擊相關部門，主要的原因在於 APT 的主要目標是獲取國家相關的機密情資。值得注意的是，針對資訊產業的攻擊在 2020 年躍升為第二大，顯示 APT 攻擊對資訊公司的高度興趣，主要的原因應與前述的供應鏈攻擊趨勢有關：這些資訊產業公司往往同時服務許多客戶並橫跨不同部門產業，攻陷這些資訊公司提供攻擊者一個絕佳的跳板來進一步滲透終端客戶。

能源產業是 2020 年被針對的第三大產業，TeamT5 觀察到至少有五個族群針對能源產業鏈中的多個部門進行滲透，我們認為這是一個徵兆，顯示敵人試圖控制台灣關鍵基礎設施的野心，因為這些部門在戰爭時期將會成為優先被癱瘓的目標。教育和智庫單位長久以來也名列 APT 攻擊目標排行榜中，相對應的攻擊數量在 2020 年位居第四名，主要的原因在於這些單位中的研究人員往往參與了政府的研究計畫或是政策制定。半導體產業是我們觀察到第五大被針對的目標，由於中國官方將半導體明定為十三五和十四五計畫中重點扶植的產業，這些攻擊應為有計劃性的網路間諜活動，目的在於竊取台灣相關的智慧財權或產業機密。醫療和運輸產業也是兩個在 2020 年被中國 APT 重點性針對的目標產業，如同前述，我們相信新冠肺炎可能是一個趨使攻擊者針對醫療產業的主要因素；交通相關產業部份，TeamT5 觀察到一個值得注意的現象：有一個我們稱為 GouShe（亦稱為 TroppicTropper、Keyboy）的 APT 族群特別針對台灣的交通運輸相關部門進行滲透，2020 年間的相關攻擊事件有七成以上均來自該族群。

![0510-1.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620618167/0510_1_bceb3b6be1.png)
_2020 年 APT 攻擊目標產業分佈_

 

TeamT5 於 2020 年間共追蹤了至少九個 APT 族群的攻擊行動，當中有八個是來自中國。HUAPI（亦稱為 BlackTech、PLEAD）是所有族群中最具野心的一群，他們的攻擊行動佔了我們所觀察到總數近三成，而且攻擊目標幾乎涵蓋了上述的所有產業。我們在前面所提到的台灣供應鏈攻擊行動他們也都有參與。APT27（亦稱 EmissaryPanda、IronTiger、LuckyMouse、BronzeUnion）、GouShe 和 AMOEBA（亦稱 APT41、Barium、Winnti）也是在 2020 年攻擊台灣的數個主要攻擊來源族群：據 TeamT5 研究，APT27 主要攻擊政府、醫療和金融相關單位和產業。GouShe 近一、兩年的攻擊行動，展現了針對交通運輸部門和產業的高度興趣，同時我們也在能源和政府單位觀察到他們的蹤跡，TeamT5 針對此族群追蹤了近十年，研究結果顯示該族群可能接受所屬單位指令來監控台灣的關鍵基礎設施，並可能在關鍵時刻針對這些單位進行控制和接管。

AMOEBA 在過去一年間主要攻擊目標包含了能源、半導體產業，教育智庫單位和資訊產業，從攻擊目標推斷，他們的主要目的偏向於智財和產業機密竊取，但我們不排除攻擊者會嘗試利用攻擊獲取成果進行二次利用，如同他們在五月間所進行的勒索攻擊行動一樣。SLIME1、SLIME9、SLIME13 是 TeamT5 對三個中國 APT 攻擊行動的暫時行動代稱，我們在近幾年都有持續觀察到他們的行動。Polaris（亦稱 MustangPanda）則是一個針對幾乎中國鄰近國家的 APT 族群，我們在三、四月間發現有多個來自他們的釣魚信件針對台灣政府和研究單位進行攻擊，我們推測他們試圖蒐集新冠肺炎相關疫情資訊。最後，我們在台灣也有發現一個由北韓 APT 族群 Lazarus 所使用的 Linux 後門工具，但沒有進一步資訊可以確認受害者身份資訊，雖然台灣在政治上並非北韓 APT 的主要攻擊目標，但由於 Lazarus 族群被公認肩負為北韓政府籌措財源的責任，舉例來說，2017 年發生在台灣銀行的 SWIFT 系統攻擊事件就是由 Lazarus 所為，此樣本也許是一個顯示 Lazarus 仍持續在台灣地區有活動跡象的警訊。

![0510-2.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620615927/0510_2_a0a7b82a23.png)
_2020 年間攻擊台灣的 APT 族群_

 

### 結語

TeamT5 相信認識敵人是有效對抗針對性攻擊的第一步，而本文章主要針對 2020 年間所觀察到的 APT 網路攻擊態勢，提供一個概觀說明。TeamT5 威脅情資研究顯示 APT 攻擊手法持續進化，真正高端複雜的行動已經不可能由單一個資安產品做有效的防護。TeamT5 [ThreatVision](https://teamt5.org/tw/products/threatvision/) 是一個以網路威脅情資為核心概念的防護方案，同時我們有一群專業的專家分析師持續做研究來讓我們持續領先於攻擊者的腳步。

> 如果您希望進一步了解我們的資安產品、解決方案或是想跟我們討論您所面臨的網路威脅，我們誠摯歡迎您與我們聯絡：<sales@teamt5.org>

 

### 參考資料

[1] https://www.ithome.com.tw/news/139331

[2] https://www.slideshare.net/codeblue_jp/cb19-resistance-is-futilethe-undefendable-supplychain-attack-by-sungting-tsai-linda-kuo

[3] https://www.youtube.com/watch?v=1KXb-sf_wos

[4] https://www.reuters.com/article/us-cyber-heist-north-korea-taiwan-idUSKBN1CL2VO

2020 年台灣 APT 網路攻擊態勢

**By TeamT5 CTO Charles Li**

2020 was considered to be a year of chaos and disaster. Big events such as the outbreak of COVID-19, geopolitical conflicts escalations in several areas, Brexit, and the U.S. president election, all influenced people around the world. In 2020, TeamT5 continued helping numerous security breaches caused by state sponsored targeted instruction attacks (APT) . In the meantime, TeamT5 intelligence Team proactively tracked APT actors’ new activities. Compared with real world, the cyber world was also full of turmoil in 2020 and many of them are reflections or extensions to events in real world. In this article, we will discuss our observation of APT trends in Taiwan in 2020.

In this article, we will first walk you through some remarkable trends, including:

- Evolution of APT tactic
- Supply Chain attack became a primary method in APT attacks
- COVID-19 driven cyber attacks

We will try to dissect the attacks happened in Taiwan in industrial view and adversarial view, which is a common method in threat intelligence analysis. Last part will be our conclusion and suggestions to respond with APT attacks.

 

### Evolution of APT tactic

In 2020, the most notable APT event in public would be the ransom-attack that strike several energy related companies in May [1]. TeamT5 research shows it to be a well-organized campaign from a notorious Chinese adversary group. Whether financial gain or political deterrence is the real motivation behind the ransom-attack remains a mystery. However, it has marked a milestone of China’s cyber-attacks against Taiwan: Chinese APT have aimed Taiwan for more than 20 years but only limited in cyber espionage operations in the past but the threat actors are now exercising new tactics to evade us.

Another cyber-attack supporting our hypothesis occurred on PTT, the most popular BBS platform in Taiwan. TeamT5 tracked a series of posts related to some scandals, with attempts to uglify Taiwanese governments or military, on PTT in July 2020. The actors abused hopping servers from various countries to hide their footprints. However, TeamT5 intelligence database shows that one of the source IP address was also used by a Chinese APT that has targeted Taiwan for more than ten years. Besides, another private source also verified the same APT group to be the culprit behind the attack. We consider both events to be indicators of China’s expansion on offensive cyber operations, which we have not observed in the past.

 

### Supply Chain attack becoming a primary method in APT attacks

Supply chain attack has become a major intrusion method for threat actors in 2020 and TeamT5 had warned such tactic in advance [2]. SolarWinds breach was undoubtedly the most successful story among them. Many high-profile US government agencies, Fortune 500 companies and even cybersecurity vendors were affected. It is so sophisticated that the scope is still uncertain yet. In Taiwan, we also observed at least three waves of similar attacks that infiltrated service providers and further leveraged their products or services to infect more victims. The first two had been published by the Ministry of Justice Bureau (MJIB) of Taiwan in August [3]. The third was still under investigation and the impact could be even bigger. We have seen a significant numbers of government agencies or private corporates in Taiwan being compromised. TeamT5 research shows that at least 3 distinct China nexus group were involved in these operations.

 

### COVID-19 driven cyber attacks

Another interesting phenomenon would be COVID-19 related cyber-attacks. Soon after the outbreak of COVID-19 pandemic, we observed state sponsored actors collecting intelligence for the pandemic. In the second half of 2020, threat actors shifted their focus to chasing COVID-19 vaccine information with the advance of COVID-19 vaccine development. In Taiwan, TeamT5 also intercepted several spear phishing emails using COVID-19 as lure theme or even more campaigns related to healthcare related entities. We believe the trend will continue as long as the COVID-19 pandemic still exists.

TeamT5 Intelligence Team had analyzed around one hundred APT attacks from China in 2020. Our statistic shows government and military agencies are still the biggest target and attacks against them counts for more than 1/4 in total and almost every APT groups that are active in Taiwan are coveting them. This trend has lasted for long since the ultimate goal of Chinese espionage operation is to obtain confidential national information. Information Technology (IT) industry also got attention a lot by APT actors and TeamT5 has observed a dramatical increase of attacks against IT industry. We believe this phenomenon is a result of threat actors’ attempts to abuse supply chain attacks and IT companies are considered to be good hopping points by actors to access various industries.

The third industry being targeted in 2020 is Energy industry and TeamT5 had observed at least attacks from 5 adversary groups. It could be a sign of our adversaries’ ambitions to control our critical industries because they will be top priorities of sabotages in wartime. Education or think tanks have been long ranked as the most attacked victims because they tend to involve in classified research projects hosted by governments or political decision makings. There were several targeted attacks against companies in semiconductor industries. It makes sense since Semiconductor industry is listed as a priority to be fostered by Chinese authority in their thirteen and fourteen Five-Year projects. Cyber espionage was also adopted as a mean to improve their techniques. Healthcare and transportation are also two industries that got coveted by APT actors. As we mentioned in the previous paragraph, COVID-19 could be an incentive for APT actors to attack Healthcare industries. Lastly, we would like to raise a phenomenon TeamT5 observed: There was an adversary group which we called GouShe (a.k.a TroppicTropper, Keyboy) focus on infiltrating Transportation related entities in Taiwan. More than 70% of transportation related cases we observed were from this specific group.

![0510-1.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620618167/0510_1_bceb3b6be1.png)
_2020 APT target industries distribution_

 

TeamT5 has tracked activities from at least 9 APT groups and 8 of them are from China. HUAPI (a.k.a BlackTech/PLEAD) was definitely the most ambitious group in Taiwan. Their attacks counts around 30% of incidents we analyzed and the targeting scope includes almost all the industries we listed. The supply chain attacks we mentioned in previous paragraphs were also conducted by them. APT27 (a.k.a EmissaryPanda, IronTiger, LuckyMouse, BronzeUnion), GouShe and AMOEBA (a.k.a APT41, Barium, Winnti) are groups that are quite active in 2020. APT27 was mostly attacking government, healthcare, and financial entities. GouShe showed a peculiar interest in transportation related entities while their footprints are also observed in energy and government entities. TeamT5 has tracked this group for many years. Our research shows that the actors might bear some responsibility from their higher commands to monitor some critical infrastructure facilities in Taiwan and take control of them in case of emergency status.

AMOEBA attacked energy companies, semiconductor companies, educational institutes, and IT companies. Their primary goal appears to be more for intellectual property or secret theft. But the possibilities exist that the actor might further leverage their achievement, like what they did in the ransom-attack in May. SLIME1, SLIME9 and SLIME13 are temporary code names for three Chinese APT campaigns against Taiwan that have lasted for a few years. Their activities still continued in 2020. Polaris (a.k.a MustangPanda) is another Chinese APT group that attacked almost all neighboring countries of China. We intercepted several of their spear phishing emails against government and research institutes in early stage of COVID-19 and we surmise they were gathering for information related to pandemic. One last interesting discovery: we discovered some Linux based malware used by Lazarus, a notorious North Korean APT group, circulated in Taiwan but we are unable to obtain the victim identity information. Although Taiwan is not a primary target of North Korean APT. But the Lazarus actors are believed to bear financial supporting responsibilities for their government agencies. For example, Lazarus is believed to be the culprit behind a Taiwanese bank SWIFT heist in 2017 [4]. The sample we uncovered might suggest their activities still exist in Taiwan.

![0510-2.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620615927/0510_2_a0a7b82a23.png)
_Adversaries attacking Taiwan in 2020_

 

### Conclusion

The purpose of this article is to provide a high-level overview of APT threat landscape of Taiwan in 2020, since TeamT5 believes knowing your enemy is the first step of effective defense. TeamT5 research shows that APT attacks keep evolving to become very complex and impossible for a security product to defend. TeamT5 has a cyber threat intelligence (CTI) centered solution, [ThreatVision](https://teamt5.org/en/products/threatvision/), and we rely on a dedicated team of security experts to keep us steps ahead of threat actors. Feel free to contact TeamT5 in case you want to know more about our products, solutions or discuss about threats you are facing.

> Contact us: <sales@teamt5.org>

 

### Reference

[1] https://www.ithome.com.tw/news/139331

[2] https://www.slideshare.net/codeblue_jp/cb19-resistance-is-futilethe-undefendable-supplychain-attack-by-sungting-tsai-linda-kuo

[3] https://www.youtube.com/watch?v=1KXb-sf_wos

[4] https://www.reuters.com/article/us-cyber-heist-north-korea-taiwan-idUSKBN1CL2VO

APT Threat Landscape of Taiwan in 2020

*Image courtesy of Black Hat from https://www.blackhat.com/us-20/

We were glad to announce that TeamT5 was again accepted at Black Hat USA. And this time, our vulnerability research team, D39, presented their latest exploit research on Samsung S10 secure bootloader at the Black Hat Briefings. We were very honored to share our research findings with researchers and security experts all over the world in this annual flagship conference.

![BHUSA_cover](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596699298/BHUSA_cover_48fcf0b266.jpg)
_TeamT5's vulnerability researcher presented on Black Hat USA 2020._

D39 has been focusing on vulnerability research and has identified several critical security flaws. We have found several vulnerabilities in Samsung Secure boot, which can break through Samsung Knox protections. In Black Hat USA 2020, we elaborated how did we discover and exploit the vulnerabilities in detail, demonstrated the exploit on a Samsung Galaxy S10 smartphone, and had a discussion on the possible impact of these vulnerabilities.

![Disclosure timeline](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596699297/Disclosure_timeline_422975e76a.jpg)
_Timeline of the vulnerability disclosure, patch release and assignment of SVE IDs._

Black Hat is the world’s leading information security event, and remains the best and biggest event of its kind. It provides attendees with cutting-edge security research, development and trends, and has the ability to define tomorrow’s information security landscape. Black Hat USA 2020 went fully virtual this year, held over the same dates from 1 to 6 August, in light of the coronavirus pandemic.

Black Hat’s Talk: D39 Shares Their Research on Breaking Samsung Secure Boot at Black Hat USA 2020

*Image courtesy of [Black Hat](https://www.blackhat.com/asia-21/)

TeamT5, a Taiwanese cyber threat investigation company, shared the results of a recent study on the North Korean Kimsuky group at the "Black Hat Asia Conference" held in Singapore last week. The Kimsuky group is already widely known and is a group that the US CISA has jointly specified with related organizations such as the FBI, and TeamT5's research is the industry's first presentation on Kimsuky this year.

TeamT5 revealed that the Kimsuky group was separated from a single group and divided into two groups, and it seems that each is operated separately for different targets. TeamT5 named them "CloudDragon" and "KimDragon" respectively, and introduced the target countries and hacking tools.

TeamT5 announced for the first time that the Kimsuky group is focusing on supply chain attacks. The target is cryptocurrency, and the digital wallet of the exchange and its owner. To this end, the Kimsuky group uses a wide range of operating system combinations of PC, Android, and iOS. Currently, portal companies are concentrating on cross-authentication of PC and mobile at the same time for user authentication, so that the same malicious code can be operated in different environments.

TeamT5 researchers schematically presented evidence of the involvement of Kimsuky's group in the domestic cryptocurrency hacking case last October. According to this, it is known that the stolen cryptocurrency was transferred to a Dutch IP address and used for laundry. Even hardware wallets known to be secure appear to have been hacked.

In addition, they also announced that they are mainly targeting fake login-inducing accounts on portal sites such as Daum, Naver, and Google. Users can receive new user credentials update emails through bait files and hacked websites. Even Microsoft Windows update notifications were used in preliminary attacks. University login websites such as University Y, University E, and University D located in Seoul were used for hacking.

It was found that the Kimsuky group shifted its focus to not only PC but also mobile environment attacks. Their so-called "hidden" agents create SMS messages without the knowledge of cell phone victims, send written texts, and upload files. It means that you can do anything with a controlled phone, regardless of the user's will, such as taking audio or video. If cryptocurrency is stored on a mobile phone or log in through a mobile phone, it can be too easily exposed to hacking.

S&C CEO Han Eun-hye, who is servicing the intelligence information of TeamT5 in Korea, said, "It is time to detect their movements in advance based on a database that has been tracking the activities of individual hacker groups for a long time to deal with cybersecurity." It is necessary to respond to cyber attacks in the future by acquiring intelligence information specific to Asia from among the intelligence information.”

[Read Full Story](https://www.boannews.com/media/view.asp?idx=97353)

【Korea Boannews】TeamT5 Announces Latest Attack Trend of "Kimsuky" Group at Black Hat Asia

圖片來源：[Black Hat](https://www.blackhat.com/asia-21/)

全球資安盛會「亞洲黑帽安全大會」（Black Hat Asia, BHASIA）今年以線上方式舉辦，自 2021 年 5 月 4 日至 7 日（新加坡時間 UTC+8），為期四天的精彩議程（Black Hat Briefing）、專業深入培訓（Training），以及最新開源駭客工具的展示（Black Hat Arsenal），由頂尖資訊安全專家們傳授最新、第一手的技術與研究發現。

TeamT5 威脅情資研究員們也登上今年的 BHASIA，發表兩場最新研究，與世界各地的資安研究人員交流最新的資訊安全風險、研究與趨勢。「[Mem2Img: Memory-Resident Malware Detection via Convolution Neural Network](https://www.blackhat.com/asia-21/briefings/schedule/#memimg-memory-resident-malware-detection-via-convolution-neural-network-22262)」由 TeamT5 技術長 Charles 與惡意程式研究員 Aragorn 介紹過去一年間發現的 APT 新攻擊手法，並發表他們基於 Mem2Img 框架的研究如何面對日新月異的惡意程式變種與變形，以及可能面臨的攻擊。

![Mem2Img.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620721192/Mem2_Img_7e094e8568.png)
_TeamT5 研究員發表基於 Mem2Img 框架如何分類記憶體中的惡意程式，並提出該框架可能面臨的攻擊。_

 

另一場演講「[“We Are About to Land”: How CloudDragon Turns a Nightmare Into Reality](https://www.blackhat.com/asia-21/briefings/schedule/index.html#we-are-about-to-land-how-clouddragon-turns-a-nightmare-into-reality-22252)」，則由我們的資深威脅情資分析師 Linda 與惡意程式研究員 DuckLL，獨家揭露 TeamT5 持續追蹤的北韓 APT 攻擊族群 CloudDragon 的攻擊行為與入侵的防禦偵測手法，包括該族群如何分群的介紹，以及三大亮點：加密貨幣產業的供應鏈攻擊（supply chain attack）、跨平台的惡意軟體攻擊、自動化更新的釣魚網頁內容。

![who_is_CloudDragon_1.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620719929/who_is_Cloud_Dragon_1_2f78c12676.png)
_TeamT5 威脅情資研究員向大家介紹 CloudDragon 為何分群以及如何分群_

![clouddragon_2.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1620724347/clouddragon_2_e8856cbe0a.png)
_CloudDragon 利用包括韓國本土與世界性的網路服務提供商進行惡意攻擊_

 

## 關於黑帽

黑帽大會（Black Hat）每年聚集全球資訊安全專家、優秀研究人員於一堂，透過資安研究、開發與最新趨勢交流，鼓勵學術界、世界級研究人員與各領域決策及領導者間的合作、成長。黑帽簡報會（Black Hat Briefing）與培訓（Training）每年也都在美國、歐洲與亞洲舉行，匯集全球資安頂尖人員參與盛會。

【BlackHat Asia】TeamT5 研究員登上亞洲黑帽安全大會

CYBERSEC 2020 臺灣資安大會將在 8 月 11 日至 8 月 12 日，於南港展覽二館盛大登場，TeamT5 杜浦數位安全等您一起來揭開 APT 攻擊族群的真面目！我們還有一系列精彩講座，歡迎您來聽聽最新的資安新知，TeamT5 執行長蔡松廷（TT），也會登台和大家分享資安事件應變與台灣資安人才培育的經驗。

 

#### 來 #53 攤位找 TeamT5！
時間：8 月 11 至 12 日 08:30 - 17:00

地點：南港展覽二館 4F #53 攤位

![展攤平面圖](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596780275/%E5%B1%95%E6%94%A4%E5%B9%B3%E9%9D%A2%E5%9C%96_085829c337.png)

 

#### TeamT5 展攤活動
- 大會展攤集點、追蹤Twitter，就送您精美攻擊族群小卡和貼紙
- 現場填寫問卷、留資料，立即送「工藝級鶯歌陶瓷吸水杯墊」乙個

 

####大會講座資訊
本屆資安大會，TeamT5 強大的講師陣容將登台演講，五場講座主題包羅萬象，除了討論近期資安事件與企業資安防護建議，還有 TeamT5 資安專家帶大家實戰演練資安事件調查。我們的漏洞研究專家 D39，也會在大會分享黑帽議程的重大研究發現。千萬別錯過我們的精彩講座！

 

** 1. 【資安事件實戰演練】**

APT 攻擊手法複雜多樣，企業受駭也不知該從何找起入侵來源。TeamT5 工程師 Zet 和 Tom 將在本場講座，帶大家從資安事件調查的實戰演練，拼湊攻擊事件原貌。

![Twitter_Post_zet+tom](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596768395/Twitter_Post_zet%2Btom_376cfb0899.jpg)

 

** 2.【CSIRT 面面觀座談】**

面對層出不窮的資安問題，許多企業開始打造資安事件應變團隊（CSIRT）。TeamT5 執行長蔡松廷（TT）將在本場講座，從團隊角色、分工與溝通等面向，談談一個 CSIRT 該如何有效運作。

![Twitter_Post_TT_CSIRT](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596768395/Twitter_Post_TT_CSIRT_f1123c2a93.jpg)

 

** 3.【大大們的 Free Talk】**

為什麼企業總是找不到資安人才，而駭客們老是抱怨找不到工作？TeamT5 執行長 TT 大大將分享他對台灣資訊安全、技術提升與資安人才培育的意見。

![Twitter_Post_TT_FreeTalk](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596768396/Twitter_Post_TT_FreeTalk_6754b55759.jpg)

 

** 4.【為什麼勒索軟體無法根絕】座談會**

隨著攻擊手法日新月異，勒索軟體災情不斷擴大，TeamT5 執行長蔡松廷將在這場座談會，和大家聊聊最近的勒索軟體事件，以及給企業的防護建議。

![Twitter_Post_TT_座談會](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596768395/Twitter_Post_TT_%E5%BA%A7%E8%AB%87%E6%9C%83_32d2662ff8.jpg)

 

** 5.【黑帽議程】Breaking Samsung's Root of Trust - Exploiting Samsung Secure Boot**

TeamT5 資深研究員將在此議程介紹他們在 Black Hat USA 2020 發表的三星漏洞研究。

![Twitter_Post_Jeffxx](https://res.cloudinary.com/dvgomg5gh/image/upload/v1596768396/Twitter_Post_Jeffxx_c90280889a.jpg)

【CYBERSEC 2020 台灣資安大會】展攤與演講活動資訊

Events

*Image courtesy of [JSAC2021](https://jsac.jpcert.or.jp/index.html)

Hold online for the first time due to the COVID-19 pandemic, on January 28, Japan Security Analyst Conference 2021 (JSAC2021), the annual cyber security conference hosted by JPCERT/CC, aimed to bring together security analysts and provide opportunities for them to share technical knowledge related to incident response and analysis.

TeamT5's CTO Charles Li and other Japanese researchers from ITOCHU Corporation, Macnica Networks, and Kaspersky, presented a joint speech on topic of [A41APT case - Analysis of the Stealth APT Campaign Threatening Japan](https://jsac.jpcert.or.jp/archive/2021/pdf/JSAC2021_202_niwa-yanagishita_en.pdf). In this session, they introduced the A41APT targeted attack campaign that has been confirmed since March 2019. The attacker's infrastructure and the relevance of this attacker group's attribution to specific APT groups were also discussed.

As one of the 11 presenters out of 22 candidates, our cyber threat analyst Shui Lee and malware researcher Leon Chang spoke on the third track of the conference, unveiling a new Chinese APT group LuoYo, which hasn't yet been grouped by the public.

 

![JSAC_LuoYu.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1613705588/JSAC_Luo_Yu_12e0800310.png)
_Shui and Leon presented their in-depth analysis of ReverseWindow._

According to their speech "[LuoYu, the Eavesdropper Sneaking in Multiple Platforms](https://jsac.jpcert.or.jp/archive/2021/pdf/JSAC2021_301_shui-leon_en.pdf)", LuoYo's activity has been observed since 2014, targeting tech companies, media, educational institutions, and other industries in China, Hong Kong, Japan, South Korea, and Taiwan. This presentation focused on a detailed description on ReverseWindow. For more details, please read the full [JSAC2021 Report](https://blogs.jpcert.or.jp/en/2021/02/jsac2021report1.html) by JPCERT/CC.

 

## About JSAC2021

Cyber attacks occur on a daily basis, and its techniques have been constantly changing. Engineers who analyze and respond to them are required to improve their skills to keep up with the ever-changing techniques of cyber attacks. However, there are few occasions in Japan where techniques and knowledge of incident analysis and response are shared among engineers. Security analysts are expected to get together and exchange their technical expertise on incident handling to develop their strength against cyber attacks both individually and as a whole.

To achieve this goal, JPCERT/CC hosts Japan Security Analyst Conference (JSAC), the annual conference for exchanging technical information on cyber security incident analysis and response. In this conference, security analysts who handle security incidents on a daily basis are encouraged to share information with each other to deal with ever-evolving cyber attacks today and in the future.

More information on [JSAC2021](https://jsac.jpcert.or.jp/en/index.html) event website.

Japan Security Analyst Conference 2021

The ubiquity of social media has altered the way people consume information, which in turn dramatically changed the way electoral campaigns are run. From the 2018 municipal elections to the 2020 general elections, Taiwan has witnessed the growing threat of disinformation to the citizens. It was observed that many malicious actors utilized social media to disseminate a huge amount of fake news, false information, and hate speech. These disinformation are like highly contagious viruses that will not only affect the people consuming them, but also make them secondary disseminators. We assess that:

1. Virus-like disinformation makes everyone on social media both victim and disseminator

   Although public discussion is the cornerstone of a good democratic society, many attacks have used voter enthusiasm to spread on social media. We have observed that many of the voters who participated in the discussion turned out to be the source of dissemination.
2. Disinformation continues to evolve in tactics and quantity, as well as expanding its targets

   The Taiwanese Central Election Commission (CEC) stated that the number of disinformation cases before the 2020 elections reached an unprecedented level. In addition to the evolution in quantity and tactics, we observed that the dissemination of disinformation did not stop even after the election, but instead shifted the target.
3. China continues to increase its influence

   Apart from news agency promoting the Chinese policies, inauthentic accounts run by bot, and patriotic netizens (A.K.A little pink), China has stepped up its influence on social media platforms to shape narratives.
4. Information operations are outsourced, layer-by-layer

   Before the elections, a number of marketing firms and new media were established to spread political messages. We discovered that some of them have connections with certain political parties, implying the layer-by-layer outsourcing of Information Operations by politically motivated actors.

From the perspective of security researchers, we integrated the Information Operations intercepted and investigated by TeamT5 over the past two years, hoping to contribute to the next democratic election.

If you are interested in this white paper, please fill out the form, and we will send you the report by email.

COMING UP NEXT: We will publish reports about how China conduct Information Operation on social media platforms, targeting domestic citizens and foreign audiences. If you don't want to miss our next report, follow us on [Twitter](https://twitter.com/TeamT5_Official).

TeamT5 Information Operation White Paper: Observations on 2020 Taiwanese General Elections

社群媒體的普及改變了人們吸收資訊的方式，衝擊了原有的選戰型態。2018到2020年，台灣面臨了新形態的選戰威脅，攻擊者利用社群媒體散播大量的假新聞、不實資訊、仇恨言論。這些攻擊就像高傳染力的病毒不僅會觸及所有社群媒體使用者，更會讓他們感染後進一步成為潛在的假消息散播源。

TeamT5 的 Observations on 2020 Taiwanese General Elections 認為：

1. 假新聞讓各政黨支持者成為可能的散播源

   假新聞攻擊會利用選民對政治的熱情，使參與討論的選民反而成為散播的節點。
2. 假新聞的手法與目標持續地改變

   中選會認為這次選前的假新聞攻擊達到以往不曾有的數量。而除了數量與手法的不同，在選舉過後，相關攻擊並沒有停止，反而轉移了目標。
3. 中國持續加大自己的影響力

   從對台機構的新聞網站到各類假帳號、機器人與自發的小粉紅，中國試圖將影響力延伸到台灣的社群媒體。
4. 假新聞的攻擊行動被層層外包

   在選舉期間大量的行銷公司與新興媒體成立並散播特定政治訊息，讓真正的攻擊者可以輕易地隱藏於之後。

我們以資安研究員的角度出發，整合過去兩年間 TeamT5 拆解過的選舉假新聞攻擊事件，希望能替下一場民主選舉貢獻心力。

若對本份白皮書有興趣，請填寫表單，我們會以電子郵件的方式寄送。 TeamT5 接下來還會解析中國如何對內與對外利用社群媒體進行資訊的操弄。不想錯過我們接下來發布的報告，請追蹤我們的[Twitter](https://twitter.com/TeamT5_Official)。


TeamT5 發布了〈資訊戰白皮書：2020台灣大選觀察〉

To confront the emerging threat of China's Information Operation, TeamT5 threat intelligence team publishes this White Paper covering how China conduct information manipulation across Chinese social media platforms. From the 2019 Hong Kong Protest to the 2020 COVID-19 pandemic, China has demonstrated the art of surveillance, censorship, and most importantly, digital propaganda.

In this white paper, we focus on China's digital propaganda inside the Great Firewall. We suggest that the regime has developed a unique, organizational, and sophisticated propaganda mechanism, which we dub as "digital propaganda formula." With this formula, the Chinese Communist Party (CCP) has managed to transform all the Chinese social media platforms inside the Great Firewall into an almost total pro-CCP environment.

#### Key Takeaways

1. CCP has strengthened its control over Chinese cyberspace by establishing legislations as well as centralizing administrations, and the "last mile" of its cyber governance is to control public opinion through censorship and digital propaganda.

2. We dub China's sophisticated propaganda mechanism the "digital propaganda formula," which consists of state media, communist youth league, governmental affairs new media, as well as trolling factory.

3. Moreover, CCP's policies have bolstered the industry of "public opinion guidance" in China. The industry practitioners have developed AI and big data-powered systems to help the government to collect, store, and analyze public sentiment.

4. China's formula has polluted the online information environment inside the Great Firewall. We assess that the CCP is trying to project its digital propaganda dominance to foreign social media platforms in order to control the world's discourse power. 

Following the global pandemic, the world relies on the internet more than ever. Cyber threat actors and influence operators, either state-backed or money driven, are taking the advantage to conduct information operation. TeamT5 threat intelligence team aims to deliver actionable intelligence and penetrating analytics and contribute to the safeguarding of cyberspace.

If you are interested in this white paper, please fill out the form below and get the full-text PDF.

 

**COMING UP NEXT**

In Part 3 of our Information Operation White Paper, we will focus on the external propaganda of the CCP. We will provide an overview of the current status and impact of Chinese propaganda machine and information operation on Western social media platforms, such as Facebook, Twitter, and YouTube.

If you don't want to miss our next report, follow us on [Twitter](https://twitter.com/TeamT5_Official).

TeamT5 Information Operation White Paper (Part 2 of 3): China’s Digital Propaganda Formula inside the Great Firewall

面對中國日趨積極、強烈的資訊操弄（Social Manipulation），TeamT5情資團隊以資訊安全研究員的視角，推出最新的〈資訊戰白皮書二部曲〉（Information Operation White Paper），進一步分析中國在「防火長城」（Great Firewall）內，如何透過社群媒體進行數位政治宣傳（Digital Propaganda）。

除了廣為人知的言論審查制度，中國在防火長城內的資訊操弄，更包含主動的數位政治宣傳。從2019年香港反送中抗爭事件，到2020年的新冠肺炎疫情，我們可以清楚看到中國越來越「爐火純青」的數位政治宣傳實力。防火長城內對社群媒體的操控，神秘、難以探知，中國更設法將牆內轉化成中國共產黨的「一言堂」，阻止了理性政治討論的可能性。

在〈資訊戰白皮書二部曲〉中，我們聚焦於：

1.	近年來，中國藉由大量的網路相關立法與集中整併政府資源，強化網路控制。而控制公眾言論的數位政治宣傳，就是中國網路治理的「最後一哩路」。

2.	我們認為中國的數位政治宣傳機制，依循著一個極為有效的「配方」（Digital Propaganda Formula），由四個要素組成：官方媒體、共青團、政務新媒體，以及中國的水軍大隊。

3.	在中國政府資源帶領下，「輿情引導產業」興起，提供人工智慧與大數據工具，替政府收集、儲存、進而分析網路民意。

4.	我們認為，中國藉著其政治宣傳配方來穩定牆內的網路生態，而下一步，就是要將自身在西方社群媒體的影響力，擴張到國外，競逐世界話語權。

在疫情之後，網路世界成為新常態（new normal）不可或缺的一部分。但於此同時，也讓網路威脅，不論是傳統駭客行動者或是社群媒體操弄者（influence operators），有更多機會發動攻擊。TeamT5情資團隊致力於傳遞有用的情資與協助決策的分析報告，希望對提升網路安全盡一份心力。

若您對我們的白皮書有興趣，請填寫以下表單，取得完整的研究報告。

 

**下期預告**

在接下來的〈資訊戰白皮書三部曲〉中，我們將討論中國對外的政治宣傳，看中國政治宣傳機器的現況與其影響，以及中國在西方社群媒體平台上的資訊作戰。

不想錯過我們接下來發布的報告，請追蹤我們的 [Twitter](https://twitter.com/TeamT5_Official)。

TeamT5〈資訊戰白皮書二部曲：中國防火長城內的數位政治宣傳〉

In the final part of our Information Operation White Paper, we will demonstrate China's Information Operations (InfoOps) targeting the global audience. The first part of the report displays a brief overview of its overt operations which are carried out by state media, embassies, and diplomats. Then we look into the covert operations, which can be observed in pro-China fan pages, content farms, and spam botnet. Last but not least, we provide the case study of "Operation Juiker" on Taiwan's largest forum PTT, which suggests the possibility of the APT (Advanced Persistent Threat) actors entering the threat landscape.

#### Key Takeaways

1. China has escalated the level of overt InfoOps via state-media and diplomats.
 
 
Chinese state media, diplomats, and embassies are the main actors of Chinese overt InfoOps. They shoulder the task to polish the image of the regime and propagate the narrative of the Chinese Communist Party (CCP). It is noteworthy that their official accounts have obtained an unexpected number of followers in recent years. For instance, four Chinese state media are included in the top 20 most-followed pages on Facebook. Their main audience, apart from the Chinese citizens, are overseas Chinese diaspora, which many of them have rights to vote in countries such as the U.S., Canada, and Australia, thus having the ability to influence a country's politics.
 
 
2. Covert InfoOps remain active on Western social media platforms.
 
 
2020 is a year which has set many records. This year, the takedowns of covert Chinese social media accounts by Facebook, Twitter, and Google are more frequent than ever. However, even with such efforts, we observed that there are new covert actors emerging across the platforms, while the banned actors keep coming back to the scene by registering new domains and new accounts. We spotted that there is a huge number of Facebook pages with admins located in China dedicated to disseminating Chinese propaganda content originated from Chinese social media platform, Weibo. Besides, there are sophisticated actors that create websites and subtle content to help the Chinese government shaping the narrative for the Hong Kong protest. We also detected numerous networks of pro-China political accounts that demonstrated strong signs of automated behavior.
 
 
3. APT actors might have entered the InfoOps threat landscape.
 
 
The situation is become more alarming as we discovered that the Advanced Persistent Threat (APT) actors might have entered the InfoOps threat landscape. APT actors, typically a state-sponsored group, usually conduct prolonged and targeted cyberattacks to mine highly sensitive data. However, in mid-2020, we identified an InfoOp that can be linked to a notorious Chinese APT group which TeamT5 intelligence team has tracked for years. We discovered that the threat actors had disseminated disinformation about "Juiker," a messaging app developed by Taiwan's research institute and widely used by government units, on Taiwan's largest forum PTT. The operation, which we dub as "Operation Juiker," aimed to discredit Taiwan's intelligence agency and government-backed research institute by spreading disinformation of the messaging app being hacked.
 
 
4. It is more crucial than ever to adopt threat intelligence solutions to combat the issue.
 
 
The abovementioned Operation Juiker has well demonstrated the possibility of "APT + InfoOp" attack model, which involves targeted social media campaigns disseminating disinformation based on highly confidential data. Such situation is super tricky, and it could pose a great threat to democratic countries. In this case, threat intelligence can help provide instant analysis of actor methodologies, suspicious indicators, and potential risks. We suggest that it is crucial for government units, critical infrastructure operators, and major business vendors to apply threat intelligence to combat this issue.
 
 

If you are interested in this white paper, please fill out the form below and get the full-text PDF.
 
 
And don't miss our blog updates! Follow us on [Twitter](https://twitter.com/TeamT5_Official).

InfoOp White Paper III: China’s Social Manipulation outside the Great Firewall

在 TeamT5〈資訊戰白皮書〉的最後一部曲中，我們將呈現中國的資訊作戰（Information Operation）是如何瞄準全球社群媒體使用者。TeamT5 希望透過這系列白皮書，分享我們作為資安研究員，如何理解中國的社群操弄。

此份白皮書的前兩個章節，介紹中國檯面上與檯面下的行動。首先觀察中國在檯面上（overt operation）如何透過中國的官媒、大使館、外交官，在社群媒體創造自己的聲量。接著分析中國檯面下的行動（covert operation），進一步研究那些無法被輕易歸因的粉絲頁、內容農場與大量的僵屍帳號。最後一章將以 PTT 論壇上關於 Juiker 的假新聞攻擊為例，提出資訊戰當中，我們最擔心的 —— 由「進階持續性滲透威脅」（APT）發起的假新聞攻擊。

 
#### 報告摘要

1. 中國持續透過官媒與外交官進行檯面上的社群操弄
 
 
中國的官媒、外交官、大使館是中國檯面上的主要行動者。這些行動者負責美化中國外在形象，以及散播對中國執政黨有利的論述。根據我們的觀察，這些帳號在西方社群媒體中都擁有大量的追蹤者，Facebook 粉絲頁中，追蹤數排名世界前 20 名的新聞媒體，第一名到第四名就是由中國官媒粉絲頁 CGTN、China Daily、People's Daily、Xinhua News 包辦。中國檯面上的社群操弄，主要針對位在美國、加拿大、澳洲等英語系國家的海外華人，並透過他們對當地的政治進行一定影響。
 
 
2. 檯面下的社群操弄持續在西方主流社群平台出沒
 
 
2020 年，西方主流社群平台 Facebook、Twitter、Google 等，都曾數次移除各自平台上與中國有關的假帳號。儘管平台方已如此頻繁地掃蕩，許多隱匿的行動者仍然在各大平台上出沒，那些曾遭移除的帳號背後，有行動者持續透過註冊新網域和帳號捲土重來。我們不斷觀察到許多可疑帳號，例如許多擁有中國管理員的粉絲頁，會搬運微博上的政治宣傳。更有甚者，我們發現許多配備精良的攻擊者，會自己架設網站和疑似是自動化產生的僵屍帳號，來協助中國政府攻擊香港抗爭者。
 
 
3. APT 攻擊者很可能參與了社群媒體上的資訊戰
 
 
我們擔心 APT 攻擊者很可能參與了社群媒體上的資訊戰。APT 通常是由一個國家所支持的駭客團體，以竊取機敏資料為主，APT 的攻擊者往往具備了強悍的網路攻擊手法與資源。然而，我們今年偵察到了一個可能是由 APT 攻擊者發動的假新聞攻擊。該事件發生在 2020 年七月，PTT 論壇八卦版上，開始有許多被盜用的帳號以假新聞攻擊台灣重要軍事單位，造謠台灣公務機關使用的 Juiker 通訊軟體遭駭，以及台灣重要軍事機關遭駭。我們透過搜索比對貼文與發文 IP，發現其中一個 IP 位址，符合某個中國 APT 曾經使用過的中繼站。
 
 
4. 威脅情資作為對抗資訊戰的重要環節
 
 
如同前述的分析脈絡，APT 與社群操弄的結合會讓防守方更加棘手。在棘手的防守環境中，唯有威脅情資（threat intelligence）可以提供即時的分析，評估攻擊者的攻擊手法、可疑的指標、以及造成的風險。而在快速更迭的社群媒體環境中，平台方與事實查核團體非常難找到證據，歸因大量散播的假新聞。我們認為唯有導入威脅情資，才能有效幫助政府單位、重要關鍵基礎設施與企業，對抗資訊戰。
 
 

若您對我們的白皮書有興趣，請填寫以下表單，取得完整的研究報告。
 
 
追蹤 TeamT5 [Twitter](https://twitter.com/TeamT5_Official)，資安動態不漏接！

資訊戰白皮書三部曲：中國的社群操弄

The Chinese government has expanded its information warfare to the highest level in the past. It has been confirmed that even the Chinese government-supported Advanced Persistent Threat (APT) hacking organization has been mobilized to manipulate public opinion such as disseminating fake news. APT organizations have gone beyond intelligence warfare. This is the first time that it has been confirmed that they have participated in public opinion.

According to a report released by Taiwanese threat intelligence company TeamT5 at the recent SANS Summit, false accounts opened on social network service (SNS) platforms such as Facebook, Google (YouTube), and Twitter have been investigated at an all-time high.

TeamT5 made this statement based on the number of closed accounts published on each SNS platform. Google said it had removed 186 YouTube channels that are estimated to be involved in the Chinese information war in the second quarter of last year.

The Chinese government is known to hold a pro-Chinese content and dissemination of false facts, which are known to be engaged in a defensive public opinion battle that includes state-run media and spam botnets while creating false accounts to create favorable public opinion. The number of Facebook pages used by The New York Times, CNN, and BBC pages exceeded the number of followers two years ago. As of April 2019, the number of followers on CGTN's Facebook page, the Chinese state media, was 75 million, while The New York Times, CNN, and BBC had 50 million each. 

It wasn't even crazy. Targeting Taiwan, which the Chinese government observes, the APT hacking organization used "Juiker" to spread false information, which is a popular SNS platform used in Taiwan like KakaoTalk.

TeamT5 said, "The APT Group is an organization that focuses on espionage and information stealing, and the fact that they are mobilized in information warfare means that the Chinese government is putting all efforts into information warfare," and "It is urgent," TeamT5 CTI analyst Che Chang warned.

The Chinese government turned out to build a system tool that monitors public opinion using Big Data and Artificial Intelligence (AI) technology, a system that can monitor not only domestic social media but also sensitive websites distributed abroad.

TeamT5 is a security company founded by APT experts. It tracks and monitors versions between the Chinese government and supplies threat intelligence to Asia-Pacific regions such as Taiwan and Japan.

[Read more](https://www.etnews.com/20210215000176)

【Korea ETNews】China, Information Warfare... Mobilizing Public Opinion Manipulation And APT Group

圖片來源：[Pixabay](https://pixabay.com/photos/internet-cyber-network-finger-3484137/)

教育部資訊安全人才培育計畫於 2020 年 12 月 12 日（六）在財團法人張榮發基金會國際會議中心舉辦「總期程期末成果展」，除了以動、靜態展示計畫四年期間的成果，也邀請優秀學員進行資安專題講座和資安學習分享。現場更設立企業資安徵才攤位，吸引許多對資安產業實習與就業有興趣的同學報名參加。

![1212-1.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1608110218/1212_1_2358ec7703.jpg)
_TeamT5 企業資安徵才攤位的諮詢人潮不斷_

 

一直以來，TeamT5 在計畫中擔任資安實務導師，包括 TeamT5 創辦人兼執行長蔡松廷，以及資深研究員 Kenny，提供來自資安業界的實戰經驗與資源，共同指導學員，希望能一同培育更多台灣未來的資安新血。

![1212-2.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1608110218/1212_2_fa53f65795.jpg)
_TeamT5 企業徵才交流場次吸引許多對資安產業實習有興趣的同學_

 

TeamT5 惡意程式研究員廖子慶（DuckLL）也是資安人才培育計畫的畢業學長，在這場「成發」中，他也上台和大家分享參與計畫的心路歷程，以及加入 TeamT5 的工作日常。

![1212-3.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1608110218/1212_3_72036b736a.jpg)
_TeamT5 惡意程式研究員 DuckLL 以計畫畢業學長身份，分享如何成為威脅情資研究員的心路歷程_

TeamT5 參加教育部資安人才培育計畫期末成果展

2021 年寒假，知識含金量爆棚的「TeamT5 Security Camp 資安培訓營」首次登場！從 1 月 19 日至 2 月 3日，三週共五天的精彩課程，由專精於不同領域的資安研究員，透過一系列多元培訓課程與實作挑戰，帶大家一同體驗實際工作日常。

「資安」已成為當今最熱門職缺之一，但許多對資訊安全領域有興趣、有志從事資安工作的同學們，面對玲瑯滿目的資安職缺，卻不知道該如何選擇。TeamT5 作為台灣少數的純資安公司，專精於駭客威脅研究，提供專業的資安顧問服務與漏洞研究，希望透過資安培訓營，提供來自業界的實戰經驗與資源，幫助同學快速探索資安領域的無限可能。

![碼名字.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612769514/_6440531a04.jpg)
_TeamT5 Security Camp 資安培訓營於今年寒假火熱登場_

本次「TeamT5 Security Camp 資安培訓營」有四大吸睛課程，包括惡意程式分析、資安事件處理、逆向工程研究，以及產品安全檢測。營隊第一天就直接帶大家進入重點課程，由我們的惡意程式分析師 DuckLL 和 Still，手把手傾囊相授，實際帶著學員分析各樣程式，一起挖掘威脅情資的奧秘。

![210119-1.1.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612430049/210119_1_1_f3969227f4.jpg)
_第一天上課就和惡意程式作者鬥智鬥力，掌握程式執行流程、封包分析、常駐方法與後門功能解析，體驗一日威脅分析師的工作日常_

第二週課程雖然因為防疫考量，暫時改為線上開課，無法讓學員在課堂實際分組討論、操作，但我們熱情幽默的「資安大會最受歡迎講師」Tom 和 Jason3e7 上課絕不冷場，深入淺出傳授大家資安事件處理的正確觀念與心法。

最後一週由核心技術團隊帶來壓軸精彩課程，「Game Master Hand By Hand」由擔任多年台灣好厲駭導師的 Kenny 開課，透過有趣的復古小遊戲外掛實作，一步步帶學員認識系統底層知識與駭客記憶體攻擊手法。

![210203-1.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612429565/210203_1_1378adcaac.jpg)
_講師 Kenny 帶大家實作軟體修改，寫好玩的遊戲外掛，循序漸進學習系統底層知識_

「產品安全檢測：IOT裝置漏洞安全研究」則由我們的 HITCON 講師群 CP、Zet 和 freetsubasa 再次上陣，介紹產品漏洞安全研究，以黑白箱測試實作教學，教學員從 Nday 學習攻擊技術、了解防禦方法。

![210203-3.png](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612429564/210203_3_09489f9a82.png)
_我們在 HITCON 2020 的講師大大們，教大家從多種面向著手 IOT 設備安全研究，分析設備的進入方式、常見的工具及攻擊技巧_

營隊最後，輔仁大學許見章教授也代表「教育部資訊安全人才培育計畫」蒞臨分享會，觀摩身懷絕技的學員們，展現各自的拿手絕活與研究新發現。除了實際體驗資安研究員的工作日常，學員們也在資安培訓營中，找到志趣相投的好夥伴。

![210203-4.3.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612430169/210203_4_3_3933a20b1a.jpg)
![210203-5.3.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612430169/210203_5_3_38f7b1ec70.jpg)
_學員們上台分享、交流自己的拿手絕活和研究新發現_

![_DSC0519.jpg](https://res.cloudinary.com/dvgomg5gh/image/upload/v1612764411/DSC_0519_25d7c0fab4.jpg)
_TeamT5 執行長蔡松廷與「教育部資訊安全人才培育計畫」許見章教授合影_

TeamT5 Security Camp 資安培訓營 寒假火熱登場

圖片來源：[Unsplash](https://unsplash.com/photos/nIEHqGSymRU?utm_source=unsplash&utm_medium=referral&utm_content=creditShareLink)

近來傳出全球半導體爆發缺貨潮，美國、德國、日本汽車大廠各自透過關係，希望台灣政府協助採購台積電晶片。《彭博社》26 日以「[全球危險地依賴台灣半導體](https://www.bloomberg.com/news/features/2021-01-25/the-world-is-dangerously-dependent-on-taiwan-for-semiconductors)」為題解析此現象，指出這不僅凸顯台積電在全球供應鏈的重要性及位階，也意味著各國政府領導人非常需要台灣維持民主、不被中國進犯，否則地緣政治紛擾將成為晶片供應瓶頸。

柏林智庫「新責任基金會」（Stiftung Neue Verantwortung）科技與地緣政治專案主任克萊恩漢斯（Jan-Peter Kleinhans）表示，台灣主宰了美國委外晶片製造市場，因此是整個半導體價值產業鏈最重要的潛在關鍵，一旦台灣失效，就會讓整個產業鏈無法運作。

#### 台灣的晶片技術，能抵禦中國進犯？

為應對中國的晶片短缺危機，中國國家主席習近平去年 10 月公布，計畫在 2025 年以前砸下 1.4 兆美元（約新台幣 39 兆元）發展國內半導體產業。然而即使這麼做，也不能完全消除中國對台灣的晶片需求。中國長期不斷挖腳製造晶片的高科技人才，曾是台積電主要高層的梁孟松、蔣尚義，如今是中國中芯國際的共同執行長和副董事長。

有鑑於美國阻礙中國發展晶片，有人猜測北京可能會竊取台灣的晶片智慧財產權技術。台灣網絡安全公司杜浦數位安全（TeamT5）觀察到，美中技術冷戰期間，台灣晶片產業受到的網路攻擊也跟著增加，但無法辨認攻擊是否都由中國當局主使，只能確定這些駭客攻擊的受害者全都是台灣半導體公司。

[點此閱讀完整報導](https://www.storm.mg/article/3426084?mode=whole)

【風傳媒】晶片大缺貨，美德日向台灣求援　彭博社：全球對台依賴達到「危險」地步

*Image courtesy of [Unsplash](https://unsplash.com/photos/nIEHqGSymRU?utm_source=unsplash&utm_medium=referral&utm_content=creditShareLink)

#### A shortage of auto chips has exposed TSMC’s key role in the supply chain

As China pushes the world to avoid official dealings with Taiwan, leaders across the globe are realizing just how dependent they’ve become on the island democracy.

Taiwan, which China regards as a province, is being courted for its capacity to make leading-edge computer chips. That’s mostly down to Taiwan Semiconductor Manufacturing Co., the world’s largest foundry and go-to producer of chips for Apple Inc. smartphones, artificial intelligence and high-performance computing.

#### Chip Industry Choke Points
The industry’s biggest companies are siloed in just a few countries.


“TSMC is becoming more and more dominant,” said Kazumi Nishikawa, an official working on technology issues at Japan’s Economy Ministry. “This is something everybody in the chip industry must find a way to deal with.”

China, in its five-year plan presented in October, is channeling help to the chip industry and other key technologies to the tune of $1.4 trillion through 2025. Yet even that kind of money doesn’t negate the need for Taiwan. Indeed, China has long tapped the island for chip-making talent; two key executives at China’s top chipmaker, Semiconductor Manufacturing International Corp., used to work at TSMC: co-Chief Executive Officer Liang Mong Song and Vice Chairman Chiang Shang-yi.

But with Washington stymieing China’s progress, there is also speculation that Beijing could resort to stealing chip IP, with Taiwan at the heart of those endeavors.

Taiwanese cyber security firm TeamT5 has observed a steady increase in attacks on the island’s chip industry corresponding to the tightening of U.S. export controls on China. While it’s not always possible to know if these are Chinese state actors, “they are all attacking the Taiwanese semiconductor industry,” Shui Lee, a T5 cyber threat analyst, said.

Fellow analyst Linda Kuo said the Taiwanese government was alarmed by a ransomware attack on TSMC in 2018 and had announced plans for some $500 million to help the industry become more aware of cyber security issues.

[Read more](https://www.bloomberg.com/news/features/2021-01-25/the-world-is-dangerously-dependent-on-taiwan-for-semiconductors)

【Bloomberg】The World Is Dangerously Dependent on Taiwan for Semiconductors

新冠肺炎疫情打亂日常生活步調，為減少群聚接觸，遠端工作、在家上班（Work From Home）成為企業因應疫情的方案之一。然而，遠距視訊會議和在家上班的網路環境，都很容易成為企業遭受駭客攻擊的破口。加上近日中油、台塑化等資安事件頻傳，政府與企業對資安風險的疑慮持續升高，擔心成為下一個受害者。

如何應對遠端工作的資安防禦，成為目前企業最關心的議題。 TeamT5 執行長蔡松廷（TT）於5月8日下午，受邀出席由經濟部工業局與工業技術研究院主辦的「SECPAAS資安小聚」直播企劃，分享企業遠端工作的資安防護要點。

![text](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590655604/secpaas_TT_779a614703.png) _TeamT5 執行長蔡松廷上直播分享企業資安防禦小撇步_

TeamT5 團隊長期觀察、研究網路威脅，發現在疫情期間，駭客的攻擊手法也「與時俱進」。隨著全球遠距工作需求提高，駭客開始在黑市以高價收購視訊會議軟體漏洞，目的就是要竊取會議內容，或者透過漏洞攻擊使用者電腦。除了線上會議系統的資安問題，VPN（Virtual Private Network，虛擬專用網路）漏洞與攻擊也是新的挑戰。

TeamT5 執行長蔡松廷強調，遠端工作的資安防護，不只要從管理層面調整（例如訂定在家上班規範），技術層面的安全升級也相當重要。企業必須找到「New normal」（新常態），而且不只在這次疫情期間，甚至未來也應該持續調整、設計更新且更周嚴的資安防護概念，以對抗複雜多變的駭客威脅。

TeamT5 執行長蔡松廷參加「SECPAAS資安小聚」直播，分享後 COVID-19 時代的企業資安防禦小撇步

圖片來源：卓越雜誌

TeamT5 杜浦數位安全榮獲科技部「科技大擂台二：AI攻防戰決賽」競賽肯定，奪冠獲五百萬元創新企業鼓勵，致力於全球資安威脅情資的研究，分析攻擊者來源及攻擊行為，客戶來自於全球各地，包含台灣政府單位，執行長蔡松廷是白帽駭客圈赫赫有名人物，攜手國家一起培育台灣未來資安人才。

[點此閱讀完整報導](http://www.ecf.com.tw/tw/article/show.aspx?num=5724&kind=77)

【卓越雜誌 411期】TeamT5 杜浦數位安全 領航全球市場

圖片來源：[Pixabay](https://pixabay.com/photos/hacking-cybercrime-security-2300793/)

一般民眾可能並未警覺，光是從一張在 Instagram 的照片，駭客就可以找出個人所在位置與相關個人資訊。

而你我身旁的資安風險只會越來越高。「因為疫情的影響，全球網路使用的頻率增加了、在家上班越來越普及，這個情況導致網路攻擊的頻率也跟著升高。」TeamT5 執行長蔡松廷表示。駭客攻擊在 COVID-19 疫情發生後上升的態勢，早已是資安業界的共識。

###「在家工作」掀起 VPN 需求，企業內網資安面臨嚴重考驗

不只是個人資訊安全風險越來越高，企業面臨的資訊安全風險也同樣逐年高升。尤其在疫情發生後，企業內網的安全性受到了「在家工作」趨勢的嚴峻挑戰。

蔡松廷就指出，疫情後可以看到企業資訊安全可攻擊的面向增加，特別是因為員工必須在家上班，家中電腦的資安防護並未像企業內部電腦這麼高，加上頻繁使用 VPN，連線到企業內網的裝置大幅增加，使用的複雜度增加，對於公司內部負責網路裝置的人員來說，要判讀員工使用 VPN 是否造成異常的難度也大幅提升。

事實上，今年在疫情發生之後，就有許多企業與政府機關，因為 VPN 的使用，被駭客攻入內網造成資安的威脅。「從 VPN 找破口攻擊，就可以直搗核心，直接朝企業內網下手。」蔡松廷說。

一旦內網被入侵，包含公司員工的個人資訊、公司內部資訊，甚至是公司業務或技術研發技術資料都可能被盜、被鎖定或被威脅刪除。一位資安專家透露，今年不乏小型公司遭駭客鎖定勒索，更甚者是有同一間公司反覆被勒索。更糟糕的是，若內部資訊已遭駭客劫持，「大概只有付贖金才有機會拿回資料，或甚至拿不回資料」，專家不諱言。

[點此閱讀完整報導](https://technews.tw/2020/11/19/information-security-special-story/)

【TechNews】一鍵風暴》我們與資安風險的距離！數十兆元地下經濟來自你我的輕忽

圖片來源：經濟日報

資訊安全要從自我防疫做起。杜浦數位安全（TeamT5）執行長蔡松廷說，所謂自我防疫指的是透過專業資服業者提供報告，以其報告針對弱點加強，非等受到駭客攻擊才補強外，可避免導入不符需求的資安產品。

蔡松廷表示，該公司於 2017 年成立，但在 2014 年團隊即投入資安研究報告服務，當時政府及企業對此資安服務接受度低，反觀日本企業能接受，因此初期以日本市場為主。近年在資安等同國安的政府施政方針，杜浦數位安全提供的報告服務受到重視，多個政府單位均是合作夥伴外，目前杜浦數位安全還串起自有外部產品，強化使用方從預防再到解決問題的能力。

[點此閱讀完整報導](https://money.udn.com/money/story/5640/5131532)

【經濟日報】杜浦數位安全：做好自我防疫 企業資安築高牆

圖片來源：[Pixabay](https://pixabay.com/illustrations/ransomware-cyber-crime-attack-5231739/)

鴻海墨西哥廠傳出遭到勒索軟體「doppelPaymer」攻擊並要求高額贖金。其實今年以來國內已有台塑、中油、Garmin，國外也有本田汽車、卡普空等大型企業受害。層出不窮的被駭事件持續發生，手法愈來愈高明，企業不堪其擾，到底該怎麼防範？

TeamT5 杜浦數位安全執行長蔡松廷指出，由於企業擔心機敏資料遭毀損或洩露，支付贖金的意願高，加上駭客利用跨國運作、虛擬貨幣支付贖金等方式讓司法追查難上加難，都讓類似的勒索模式近年來越來越常見。

他表示，企業遭受攻擊時切勿在情急下輕易支付贖金，應先檢視、刪除系統內所有駭客留下的後門，並找出入侵根因，防堵再度入侵的可能性。


[點此閱讀完整報導](https://money.udn.com/money/story/5612/5079055)

【經濟日報】鴻海也遭駭客入侵 企業到底該如何防範？

圖片來源：[Pixabay](https://pixabay.com/photos/cyber-security-smartphone-cell-phone-2765707/)

記取過去 SARS 慘痛教訓，政府開始建立疫情指揮中心，並在這次防疫過程扮演關鍵角色，相對地，企業面對重大資安事件時，不僅要具備資安應變團隊，背後也要有編組與演練的配合。

成立最高層級指揮中心，統一指揮調度，是緊急事件應變的好方法，TeamT5 杜浦數位安全執行長蔡松廷建議，資安應變團隊至少要有專門負責事件調查、災難復原與溝通協調等不同角色。

[點此閱讀完整報導](https://www.ithome.com.tw/news/138882)

【iThome】從「疫情指揮中心」學防駭：面對資安事件不能群龍無首，必須建立資安應變團隊

*Image courtesy of CODE BLUE from https://codeblue.jp/2020/en/

CODE BLUE 2020 is held online for two days on October 29th and 30th due to the COVID-19 pandemic. And TeamT5 is thrilled to be sponsoring and participating in this top-class information security conference in Japan.
 
We are very honored to attend this virtual event this year, and our cyber threat analysts and malware researchers are going to talk at CODE BLUE 2020. We also organize a workshop together with our partner, Terilogy Worx Corporation. Join us and don't miss out on this fantastic event!

Here is an overview of our speech and workshop.

### Speech

- **Law & Policy | Dissecting China’s Information Operations with Threat Intelligence**

Our cyberthreat analysts Che Chang and Silvia Yeh will share their findings on China’s Information Operations on social media platforms.

![twitter_talk1](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_talk1_0dcc012fee.png)

 

- **CyberCrime | Operation I am Tom: How APT Actors Move Laterally in Corporate Networks**

Our CTO Charles Li and malware researcher Aragorn Tseng will present lateral movement methods to penetrate corporate network environments and techniques to bypass security monitoring systems.

![twitter_talk2](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_talk2_96b51874a6.png)

 
 
- **Open Talk | Cyber Cold War and Tensions – The Critical Infrastructures Are Under Attack**

Our CEO, Sung-ting Tsai (TT), will share the experience we have learned from the security incidents in Taiwan, especially for the attacks targeting critical infrastructures.

![twitter_open-talk](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_open-talk_855b5d4b4b.png)

 

### Workshop: APT Malware Analysis 101

TeamT5 and our partner, Terilogy Worx Corporation, co-host a virtual workshop on CODE BLUE 2020. Our Lab Engine and Global Support team will demonstrate basic techniques of reverse-engineering malware with our threat hunting tool - ThreatSonar. This workshop is available in English and Japanese (consecutive interpretation).

![twitter_worksop](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_worksop_fb1cf3480a.png)

- **Speakers**
 - TeamT5 Lab Engine & Global Support
 - Terilogy Worx Corporation, Director, Business development, Yoichi Matsuura

- **Abstract**

This workshop will teach you about the basic technique of reverse-engineering malware, and how to analyze it according to OSINT. We will focus on two of the most dangerous malware this year: BigPooh (LODEINFO) and LNCookie (TSCookie Linux version) based on both Linux and Windows OS. You will learn a lot of practical concepts when analyzing APT malware. Furthermore, we will also show you how to proceed with analysis and threat hunting by using our simple/light-weight tool - ThreatSonar.

- **Location**: via Google Meet. Registration form on CODE BLUE [EventHub](https://client.eventhub.jp/ticket/tZ8hp0-Qk).

![register2](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603770757/register2_ef67e87cf1.png)
_Registration Guide for TeamT5 Workshop_

 

### What’s CODE BLUE?

CODE BLUE is Japan’s largest international information security conference, which aims to contribute to a better Internet world by connecting people through CODE (technology), beyond and across the BLUE (oceans). Every year, the world’s top-class specialists and researchers gather together to share their latest findings and give cutting-edge talks. It is a place for all participants to exchange information and collaborate to respond to and solve information security problems.

More information on CODE BLUE 2020 [Official Website](https://codeblue.jp/2020/en/).

TeamT5 Exhibits at "CODE BLUE 2020" Virtual Event

*Image courtesy of CODE BLUE from https://codeblue.jp/2020/en/

今年のCODE BLUEは10月29日、30日の両日、COVID-19の影響によりオンラインで開催されます。Team T5は、日本でトップクラスのこのセキュリティカンファレンスにスポンサーとして参加できることを非常にうれしく思います。

私たちはこのバーチャルイベントに参加し、また、我々のサイバー脅威分析官やマルウェア分析官がCODE BLUE 2020のスピーカーとして登壇できることを誇りに感じております。 

ここで、CODE BLUE 2020で私たちが予定しているイベントについてご紹介しましょう。

### スピーチ

- **法とポリシー：「脅威インテリジェンスによる中国の情報操作の分析」**

私たちのサイバー脅威分析官であるチェ・チャンとシルビア・イェが、中国のソーシャルメディアプラットフォームにおける情報操作についてご説明します。

![twitter_talk1](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_talk1_0dcc012fee.png)

 

- **サイバー犯罪：「Operation I am Tom：企業ネットワークにおいてAPTアクターがその内部で移動する方法」**

Team T5のCTOであるチャールズ・リーとマルウェア分析官のアラゴルン・ツェンから、企業ネットワークにおけるラテラルムーブメントの手法とセキュリティモニタリングシステムのバイパス手法についてご説明します。

![twitter_talk2](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_talk2_96b51874a6.png)

 
 
- **オープントーク：「サイバー冷戦と緊張 ― クリティカルインフラストラクチャは攻撃されている」**

Team T5のCEOであるSung-ting Tsai(TT)が、私たちが実際に台湾で経験したセキュリティインシデントから学んだ経験から、とくにクリティカルインフラストラクチャを目標にした攻撃に関してお話しします。

![twitter_open-talk](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_open-talk_855b5d4b4b.png)

 

### ワークショップ：APTマルウェア分析入門

TeamT5のLab Engine & Global Supportチームとパートナーのテリロジーワークスによる、ワークショップです。脅威ハンティングツールである「ThreatSonar」を用いたマルウェアのリバースエンジニアリングのための基本テクニックを、日英両言語で説明します。

![twitter_worksop](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603765617/twitter_worksop_fb1cf3480a.png)

- **スピーカー**
 - TeamT5 Lab Engine & Global Support
 - 株式会社テリロジーワークス　ディレクター　ビジネス開発担当 松浦　洋一

- **要約**

このワークショップではマルウェアのリバースエンジニアリングに必要な基礎テクニックとＯＳＩＮＴを用いた分析方法について説明します。今回はLinuxおよびWindows環境の2つの最も危険度の高いマルウェア「BigPooh(LODEINFO)」と「LNCookie(TSCookie Linux version)」に注目して分析を行いますので、APTマルウェアの解析に必要な多くの実践的なコンセプトを学ぶことができます。また、分析と脅威ハンティングに最適な弊社ツール「ThreatSonar」を用いた手法についてもお話しします。

 

- **開催はCODE BLUE [EventHub](https://client.eventhub.jp/ticket/tZ8hp0-Qk)が提供するGoogleMeetで行います。**

![workshop_jp instruction](https://res.cloudinary.com/dvgomg5gh/image/upload/v1603935671/workshop_jp_instruction_653442301b.png)

 

### CODE BLUEとは？

CODE BLUEは日本で最大級の情報セキュリティカンファレンスであり、CODE(技術)を通じて人々を結び、BLUE(海原)を超えて集うことにより、より良いインターネット世界に貢献することを目的としています。毎年世界中からトップクラスのスペシャリストやリサーチャーが最新の発見や最先端の話題を持ち寄って集まっています。ここはすべての参加者にとって、様々なセキュリティ問題に関して情報交換し、協力しながら対応、解決していくための場なのです。

さらに詳しい情報はCODE BLUE 2020オフィシャルサイトへどうぞ。

https://codeblue.jp/2020/en/

TeamT5 は“CODE BLUE 2020”オンラインイベントに登壇します

TeamT5's ThreatVision APT identification engine is now integrating with PolySwarm malware analysis platform to help power the growing crowdsourced malware analysis marketplace.

PolySwarm is a crowdsourced malware analysis platform specialized in new and emergent threats. It is powered by a network of research-driven engines, like TeamT5, which are highly specialized and focused on detecting the latest malware. Unlike in other multiscanners, engines in PolySwarm are incentivized to respond just when confident, and are compensated based on performance, improving signal-to-noise ratio and reducing false positives. Multiscanning, threat scoring and hunting in a single platform give analysts a novel tool to detect, analyze and respond to threats.

TeamT5's alliance with PolySwarm will be beneficial to our specialized research in APT intelligence in Asia-Pacific. And we as a team will definitely bring the experience of our clients to the next level.

With TeamT5's solid technical background and frontline expertise, we provides more in-depth information about the malware, such as threat level, adversary and linkage discovery information, to help our clients dealing with the APT attacks they are facing from all over the world.

TeamT5's ThreatVision Cyber Threat Intelligence Platform Joins PolySwarm Malware Analysis Marketplace

全球知名的資安威脅情資平台業者 Anomali，與我國最具潛力的資安新創業者 TeamT5 杜浦數位安全於日前結盟。TeamT5 在亞太區 APT 攻擊領域的洞察研析能力深受各方肯定，未來 Anomali 威脅情資平台上將收錄 TeamT5 的情資，使全球的 Anomali 用戶能掌握更全面且獨到的威脅資訊。

此次的合作對資安界及雙方的用戶而言都深具意義。Anomali 台灣總代理衡崴科技（Apertex）總經理林大森表示，Anomali 身為情資平台的領導者一直致力於收錄更廣泛、更多元的資安威脅情資，台灣則因地緣政治因素經常能率先掌握大陸及北韓的各種新資安攻擊樣態，而 Anomali 引進 TeamT5 的專業情資，將有助於全球的 Anomali 用戶對亞太區的 APT 攻擊及早因應、提前佈署。

TeamT5 成為 Anomali 在亞太區 APT 情資合作的首要夥伴具有雙重意涵，TeamT5 執行長蔡松廷進一步說明，Anomali 與 TeamT5 的合作讓用戶擁有更高的威脅能見度，同時 TeamT5 品牌也因此在全球資安情資需求者、需求市場中提高了知名度。

展望後續，美、中正進入全層面、全維度的競賽，除軍事、貿易、科技外亦在資通訊活動上較量，即資訊冷戰，無人能置身事外。此次 Anomali 與 TeamT5 的結盟也意味著美、台聯防互補的成形，期合作的綜效能為廣大企業在積極完備資安上更盡心力。

TeamT5 聯手 Anomali  台美資安合縱聯防

### D39

D39 focuses on vulnerability research and has identified several critical security flaws, including technical exploitation of mobile, IoT devices, and Linux and Windows operating systems. We have reported dozens of vulnerabilities and dedicate to Samsung Vulnerabilities and Exposures (SVE) and Common Vulnerabilities and Exposures (CVE).

Before diving into the main subject this month, we are glad to announce that TeamT5 is again accepted at Black Hat USA, and our vulnerability research team, D39, will talk at the Black Hat Briefings in the upcoming August. We are honored to share our research findings with researchers and security experts all over the world and expect more recognition of Taiwan's vulnerability researchers in the world.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769445/D39_6-1_6807f98c9b.png)
[Black Hat Session](https://www.blackhat.com/us-20/briefings/schedule/index.html#breaking-samsungs-root-of-trust-exploiting-samsung-s-secure-boot-20290)

This article will cover a part of our talk at Black Hat USA in August.

### Introduction

We have found several vulnerabilities in Samsung Secure boot, which can break through Samsung Knox protections. We can even retrieve users' sensitive data from a locked device. The affected Samsung mobiles include Galaxy S8, S9, and S10. Patches to these vulnerabilities have been provided by Samsung.

One of these vulnerabilities allows attackers to execute arbitrary code in Galaxy S8 secure bootloader to access the device. In this article, we will elaborate how we exploit these vulnerabilities to bypass S8 secure bootloader through the USB device and obtain arbitrary code execution in early boot stage.

Note: Another security research team found this vulnerability at the same time and report it to Samsung.
ID: SVE-2019-15230 (details below).
![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769435/SVE-2019_3bc5eea84d.png)

### KNOX

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769436/D39_6-2_ee457f68cd.png)
[Image courtesy](https://docs.samsungknox.com/whitepapers/knox-platform/hardware-backed-root-of-trust.htm)

As the market leader of smartphone, Samsung conducts a series of protection on Android, known as the Knox Platform, to ensure the security of its devices. During the booting process, Samsung uses S-boot (Secure Boot) to make sure it can only boot a stocked image. If the device tries to boot a custom image, it will trip (turned from 0X0 to 0X1) a one-time programmable bit e-fuse (a.k.a Knox bit). Once a trustzone app (trustlet) detects the Knox bit tripped, it will delete the encryption key of sensitive data to prevent unauthorized data from accessing the locked device.

### Vulnerability

Smartphones with Samsung Exynos processor use a exclusive secure bootloader named S-boot. S-boot has ODIN mode which allows users to upgrade the firmware manually. Due to the insufficiency in its code, the flash command (opcode: 0x66) in ODIN mode is not able to properly check the flash image size, which leads to buffer overflow.

The flash command in ODIN mode uses a temporary buffer to store the image. In Galaxy S8, the buffer is located at 0xC0000000, right in front of sboot code segment (0xC9000000). Although the system will check to ensure that the size being no larger than 0x1e0000, it uses signed comparison to check the size of the image; thus provide us some space to get around. We therefore provide a size larger than 0x80000000, making buffer overflowed and, in the end, the following segments such as code, stack, and heap will be overwritten.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769435/D39_6-3_8b038e080e.png)

### The Exploit

#### Code Execution

Although we can overflow the code segment of S-Boot, we still cannot hijack the execution flow. Since USB receivers use physical memory to hold the data it received directly, we cannot affect instruction cache unless the cache line has been invalidated.

Fortunately, the heap segment is not cached due to MMU flag. There are some pointers stored in the heap segment, which can be accessed during the USB process. If we overwrite these pointers with null bytes, the processor will trigger an exception and trap into the exception handler while accessing to NULL pointers. Since the handler has never been executed, it is not cached in the instruction cache. Therefore we can also overwrite the exception handler simultaneously and hijack it directly to our shellcode.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769437/D39_6-4_58c7cc6a95.png)

#### Booting Custom Kernel

Since all the run-time data has been overwritten -- including stack, heap and global variables -- the sboot fail to perform further booting operation. These kinds of data are difficult to recover, so we must re-execute the booting process.

Under normal condition, S-boot calls several functions in a particular function table which is located at 0xC90C7350. To re-execute s-boot, these functions have to be invoked sequentially again. They would initialize the memory of heap and stack, set the global variables, and boot the kernel at the end. However, these functions also involve some SMC calls which cannot be executed twice. Since we only compromised EL1 (Exception Level 1), the trustzone in EL3 (Exception Level 3) cannot be reverted. As a result, we have to overwrite these SMC calls with NOP instruction while overflowing the code segment to ignore those SMC (System Management Controller) calls.

After all the run-time data has been reset, we replace the original kernel with our custom one. Then we execute one last function to boot our custom kernel and get the **root privilege without blowing KNOX bit**.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769436/D39_6-5_2f6b6f9ccd.png)

### Timeline

2019-10-02 Report Vulnerability
2019-10-08 Informed Vulnerability duplicated and release patch note

### Appendix: Potential Exploit Path on Galaxy S10

According to our analysis, this vulnerability affects Galaxy S9, Galaxy S10 and Galaxy Note 10 as well. Among them we find that exploitation can still be trigger at different address. For instance, even the temporary buffer located at different addresss, like 0x890000000 in Galaxy S10, there are still chances to exploit it. To explain the complete exploitation flow, we choose the firmware, G970FXXU1ASD5, as an example.

In Galaxy S9 and later version, there is another feature added to the secure boot - compressed_download. It uses another buffer to store the flash image. However if compressed_download failed during the initialization, it will fallback to normal download, and use the buffer (0xC0000000) to store the flash image.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1591769435/D39_6-6_724f86aa51.png)

To make S-boot fallback to normal download, we have to make the function `cd_v3_smp_register` fail. After reversing, we noticed that the function `cd_v3_smp_register` may return failed if there is no available core(`booted_cores` > 3) can be booted. Coincidentally, there is a test command - "smp_boot_test" in the UART (Universal Asynchronous Receiver/Transmitter) console. The command smp_boot_test will boot a core and add the count of the booted_cores. Although `smp_boot_test` shutdown the booted up core immediately, it didn't restore the count. Therefore, the compressed_download_init may failed if the command `smp_boot_test` has been invoked more than twice before entering the download mode.

If we have the UART debug cable to get the UART console, we can call the command`smp_boot_test` 3 times and enter the download mode via the command `usb`. The `compressed_download_init` would fail, then the temporary buffer fallback to 0xC0000000. Therefore the arbitrary code execution on S10's bootloader can be achieved as the one in Galaxy S8.

We managed to build our own TypeC debug cable at first. However, after trying every kinds of Pull-up/down resistor value, TypeC accessory mode, TypeC VDM, we cannot yet figure out a cable for RID_523K detection. Still, in the end, we applied other approach that enable us to attain **Galaxy S10 Secure Bootloader's permission of arbitrary code** without having debug cable.

We will have a thorough display on Black Hat. Stay tuned!

For the latest vulnerability research from D39, please follow:

TeamT5 official website: [https://teamt5.org/](https://teamt5.org/ "https://teamt5.org/")

Twitter: [https://twitter.com/TeamT5_Official](https://twitter.com/TeamT5_Official "https://twitter.com/TeamT5_Official")

BlackHat's Talk: Breaking Samsung's Root of Trust - Exploiting Samsung Secure Boot

**Time** | Tuesday, 4 August 2020, 3:00 - 4:00 pm (GMT+8)

**Registration** | Please contact our sales and get the registration link: <sales@teamt5.org>

 

Taiwan's 2018 municipal elections and 2020 general elections were both under the great threat of Information Operation (InfoOp). To influence the outcome of elections, state-backed threat actors have exploited the features of social media environment to conduct InfoOps, which involves the spread of disinformation, hate speech, and propaganda. Their operations had polarized and manipulated the voters, which in turn polluted the digital information ecosystem.

Join TeamT5's exclusive live webinar, and hear our cyber threat intelligence analysts, Che Chang and Silvia Yeh, to grasp the basic understanding of InfoOp in Chinese-language cyberspace, and how China conducts InfoOp on social media platforms.

**Register for this webinar to discover:**

- What is Information Operation (InfoOp) and how does it endanger the users on social media platforms?
- How do we contribute to the fight against InfoOp in 2020 Taiwan Presidential Election?
- How does China conduct InfoOp in pursuit of its political interest?

*Note: This live webinar will be offered in English only.

 

####Speakers
**Che Chang** is a Cyber Threat Analyst and the co-author of "TeamT5 Information Whitepaper." He focuses on underground markets research and state-sponsored Information Operation (InfoOp). Che is the invited speaker of many global and regional conferences, including 2020 April vGCTF workshop on Combatting COVID-19 Disinformation, 2019 Cybersec in Taiwan, a closed-door meeting of Taiwan Academia Sinica, etc.

**Silvia Yeh** is a Cyber Threat Analyst at TeamT5 Cyber Intelligence Team and the co-author of "TeamT5 Information Whitepaper." She focuses on issues related to Information Operations (InfoOps) and is currently responsible for cyber policies analysis of China and other Asia-Pacific countries.

Live Webinar: Dissecting Information Operation in Chinese-language Cyberspace

TeamT5 攜手日商 Macnica Networks 與 Terilogy Technology 合作提供「企業 APT 攻擊防疫計畫」，協助日本境內關鍵基礎設施（Critical Infrastructure）的相關企業在新冠肺炎疫情期間對抗 APT 攻擊（Advanced Persistent Threat）。

「企業 APT 攻擊防疫計畫」將使用 ThreatSonar 掃描與診斷 14 個關鍵基礎設施產業，包括：政府、軍事國防、情報通信、金融、航空、鐵路、電力、水利、醫療、物流、化學、石油瓦斯及半導體等。我們的威脅診斷工具 ThreatSonar 可協助企業防範資安事件於未然，及早偵測潛藏的 APT 風險。

同時因應台灣各大企業，尤其是關鍵基礎設施營運單位，在疫情時期大幅上升的資安危機，TeamT5 同時推出「遠端辦公防疫計畫」（WFH Cloud Program）來替各大企業診斷與辨認一般防毒軟體無法有效守備的 APT 攻擊。

關於日本境內的「企業 APT 攻擊防疫計畫」申請方式與服務內容，請洽詢當地代理商來了解更多申請資訊與適用辦法。至於台灣的「遠端辦公防疫計畫」，請洽台灣業務。

TeamT5 聯手 Macnica Networks 與 Terilogy Technology，幫助「關鍵基礎設施」對抗 APT 攻擊

TeamT5 and Macnica Networks have published our joint research on APT attacks targeting Japan over the past year. In this collaborative research, we provide valuable insight into four advanced persistent threat (APT) groups and actors. The full report will first be available in Japanese and can be accessed at Macnica Networks' website.
 
The APT groups' highlighted in this joint project were believed to have been launching cyber espionage campaigns elsewhere in the world. To enhance APT defense strategies, we take a closer look at the four APT groups, including DarkHotel, Huapi (BlackTech), Nian (Tick), and one unclassified backdoor LODEINFO. These APT groups have been threatening crucial sectors in Japan, such as government, military and defense, manufacturing, telecommunication, education, media, and etc.

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590655880/APT_Attack_Timeline_2019_2da7de1832.png)
_The attack timeline of the APT groups' campaigns in Japan in 2019._

Macnica Networks is one of the largest system integrators (SI) in Japan. As a leading network distributor, it provides a wide range of advanced network products and information technology to government offices, educational institutions, and general companies.

To access the full report, please visit: [https://www.macnica.net/mpressioncss/feature_06.html/](https://www.macnica.net/mpressioncss/feature_06.html/ "https://www.macnica.net/mpressioncss/feature_06.html/")

TeamT5 and Macnica Networks Release Joint Project on 2019's APT Attacks in Japan

### **TeamT5's technology "ThreatSonar" wins the finals of MOST's "Formosa Grand Challenge 2: S-FUND", taking home TWD 5 million in prize money as start-up funds.**

_(Reference: www.most.gov.tw)_

TeamT5 has won the final competition of the "Formosa Grand Challenge 2: S-FUND", which was held by Ministry of Science and Technology (MOST) and jointly implemented by the Science & Technology Policy Research and Information Center (STPI) and the National Center for High-performance Computing (NCHC). TeamT5 was awarded TWD 5 million and received praises from the review board. The Ministry of Science and Technology looks forward to their more completed business models in addition to advancing their technologies further and having a place in the field of international information security protection.

The "Formosa Grand Challenge 2: S-FUND" competition was held from May 2015, offering challenges for companies to solve IT security issues. Participating teams are free to propose solutions to subjects such as "Assisting in the resolution of potential threats", "Improving IoT security", "AI security threats and defense technology development", and "Other applications of cybersecurity technology". More than 20 teams registered to participate in the competition. The TeamT5 security team has performed with their AI developed technology "ThreatSonar Endpoint Intelligent Threat Identification Platform" and finally won the competition after going through all the stages over the past year.

From:

The Ministry of Science and Technology

https://www.most.gov.tw/folksonomy/detail?subSite=main&article_uid=30d3f20d-2fd0-4b0e-b7ba-2ead02e0e651&menu_id=9aa56881-8df0-4eb6-a5a7-32a2f72826ff&l=CH&utm_source=rss

The Science & Technology Policy Research and Information Center (STPI)

https://www.stpi.narl.org.tw/public/show.htm?id=4b1141646ad4bbb2016b4ef9ed357b30


TeamT5 Wins the "Formosa Grand Challenge 2: S-FUND" Final

**關鍵字：HUAPI、PLEAD、GhostCat、CVE-2020-1938、Linux、BiFrost、RC4、RAT**

### 前言

TeamT5 近期接獲情資，於台灣某學術網路的圖書館網站上發現存有惡意程式。經過 TeamT5 研究員分析調查發現，該網站系統使用 Tomcat 7.0.73 作為網頁伺服器且開啟 8009 通訊埠，TeamT5 研究員驗證網站具有 Ghostcat（CVE-2020-1938） 漏洞，詳見下圖。

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590715647/Huapi_1_693c241b07.png)
_圖一、Nmap 掃描結果_

駭客利用 Tomcat 網頁伺服器預設開啟的 AJP 服務（預設為 8009 通訊埠），可達到遠端指令執行（Remote Code Execution, RCE）之目的並上傳檔案。於該案例中，駭客疑似透過 Ghostcat 漏洞上傳 BiFrost 惡意程式，使該圖書館系統成為惡意程式下載站（Download Site）。

### 惡意程式分析

該惡意程式（8fd3925dadf37bebcc8844214f2bcd18）於 2020 年 1 月 31 日被上傳至 Virustotal 平台，當時的各家防毒軟體的偵測率並不佳，僅有 6 家防毒軟體能夠有效識別，詳見下圖。

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590715649/Huapi_2_f22974775a.png)
_圖二、惡意程式於一月底上傳至 VirusTotal 且一開始防毒軟體的偵測率並不佳_

TeamT5 取得該惡意後門程式並進行分析，該惡意後門程式檔名為 md.png，但檔案格式為 UNIX ELF 執行檔，推測是利用 PNG 副檔名偽裝在 Tomcat 網站伺服器上，詳見下圖。

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590715648/Huapi_3_c26aa8fc03.png)
_圖三、偽裝為 PNG 的 ELF 執行檔_

使用 TeamT5 的 ThreatSonar 惡意威脅鑑識系統可有效辨識出該惡意程式並可以偵測到中繼站 IP 位址（107.191.61.247），詳見下圖。

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590715648/Huapi_4_60a6816101.png)
_圖四、ThreatSonar 偵測畫面_

經過逆向分析，該惡意後門程式具有上傳/下載/列舉/刪除/搬移檔案（File）、執行/結束程序（Process）、開啟/關閉遠端命令列介面程式（Remote Shell）等功能，其中惡意後門程式與中繼站的連線內容會使用修改過的 RC4 演算法進行加密，此專屬特徵可用來辯認出此惡意程式，詳見下圖。

![](https://res.cloudinary.com/dvgomg5gh/image/upload/v1590715648/Huapi_5_9291a10e8d.png)
_圖五、惡意後門程式使用修改後的 RC4 加密演算法_

### 攻擊族群分析

該惡意程式為 Linux 版本的 BiFrost 後門程式，其版本號為 5.0.0.0。根據 TeamT5 長期研究的情資顯示，該惡意程式為中國駭客組織 HUAPI（又名為 PLEAD）慣用的後門程式。HUAPI 駭客組織自 2007 年開始活躍至今，攻擊台灣超過 10 年的時間。TeamT5 觀察到 HUAPI 所開發的惡意程式有時會使用加殼來阻擋研究人員分析，且通常會使用修改後的 RC4 演算法來加密傳輸。HUAPI 長期攻擊政府、高科技、電信或研究智庫單位，根據 TeamT5 的統計結果，超過 5 成的受害單位為政府機關，受害國家包含台灣、美國、日本及南韓，其中針對台灣政府機關進行入侵攻擊的為多。

### 影響與建議

若用戶有使用 Tomcat 服務作為網頁伺服器，且版本為以下之一者：

* Apache Tomcat 9.x < 9.0.31
* Apache Tomcat 8.x < 8.5.51
* Apache Tomcat 7.x < 7.0.100
* Apache Tomcat 6.x

TeamT5 建議需要立即進行版本更新，避免遭到駭客利用 Ghostcat 漏洞進行遠端控制，甚至上傳惡意檔案。

另外，若用戶若遭遇針對性進階持續威脅（Advanced Persistent Threat, APT）時，則需要使用如 TeamT5 的 ThreatSonar 惡意威脅鑑識系統，IT 管理者可以在最短時間內偵測並回應這類的惡意威脅。TeamT5 建議可將下方威脅指標（Indicator of Compromise, IOC）匯入到各式資安設備中偵測與識別威脅。

* 107.191.61.247
* 8fd3925dadf37bebcc8844214f2bcd18
* Yara Rule

 rule RAT_BiFrost_UNIX
 {
 meta:
 description= "HUAPI UNIX BiFrost RAT"
 author = "TeamT5"
 date = "2020-04-15"
 
 strings:
 $hex1 = {25 ?? 00 00 00 85 C0 75 37 8B 45 F0 89 C1 03 4D 08 8B 45 F0 03 45 08 0F B6 10 8B 45 F8 01 C2 B8 FF FF FF FF 21 D0 88 01 8B 45 F0 89 C2 03 55 08 8B 45 F0 03 45 08 0F B6 00 32 45 FD 88 02}
 $hex2 = {8B 45 F0 03 45 08 0F B6 00 30 45 FD 8B 45 F0 89 C1 03 4D 08 8B 45 F8 89 C2 02 55 FD B8 FF FF FF FF 21 D0 88 01}
 
 condition:
 all of them
 }

### 外部參考資料

1. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1938

中國駭客 HUAPI 的惡意後門程式 BiFrost 分析

近期 Tomcat Server 被揭露的 Ghostcat 漏洞，已有疑似被利用的攻擊情事發生，由於 Tomcat 是 Java 開發者常用的應用伺服器之一，且這個漏洞在國內比較少被關注，還未更新修補的用戶可要特別注意。在 Apache Tomcat 官方網站上，已於 2 月 11 日與 14 日發布不同版本的更新修補，用戶應儘速更新修補，用戶可升級至 9.0.31、8.5.51 與 7.0.100 版本。

近日臺灣資安業者 TeamT5 杜浦數位安全指出，他們發現臺灣學術網路上的一個圖書館網站，遭到中國駭客組織 HUAPI（又名為 PLEAD）上傳了 BiFrost 後門程式，並將該網站變成惡意程式下載站。

根據 TeamT5 的說明，他們是在 3 月接獲情資，並於該圖書館網站上發現存有惡意程式，在之後的分析調查結果中，他們發現，該網站系統使用 Tomcat 7.0.73 作為網頁伺服器，同時也有開啟 8009 通訊埠，具有 Ghostcat（CVE-2020-1938）漏洞。經他們判斷，在此案例，駭客應是透過 Ghostcat 漏洞上傳 BiFrost 惡意程式。

[點此閱讀完整報導](https://www.ithome.com.tw/news/137074)

【iThome】Tomcat Server 存在 Ghostcat 漏洞，有中國駭客在臺灣校園網站上傳 BiFrost 後門程式

photo courtesy of: pixabay.com

Our senior security researcher Shih-Fong Peng (@_L4ys), has found a critical vulnerability in Microsoft Windows. This vulnerability is officially defined by MITRE as CVE-2019-1188 (LNK Remote Code Execution Vulnerability).

TeamT5 suggests our clients to update this patch immediately. This vulnerability could allow attackers obtain privilege of the local user. Users should be vigilant of any suspicious removable drive or remote share for holding malicious .LNK file. If the .LNK file is parsed by any application, it could allow remote code execution and make system under the control of attackers.

More Details of CVE-2019-1188:

https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2019-1188

More Detail of the Microsoft Patches in August 2019:

https://portal.msrc.microsoft.com/en-us/security-guidance