Banking Trojan Can Hack Facebook, Twitter, and Gmail Accounts

Security researchers have discovered a new sophisticated version of the infamous Zeus Trojan, and this version can steal more than just bank account details.

Terdot, this variation of Zeus Trojan, has been around since mid-2016 and was back then designed to operate as a man-in-the-middle (MiTM) proxy, stealing browsing such as stored credit card and login credentials.

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Researchers at Bitdefender discovered that Zeus has new capabilities such as leveraging open-source tools for spoofing SSL certificates in order to access social media accounts and post on behalf of the infected user.

Tredot can target user accounts on social media: it can hack Facebook, Youtube, Google Plus, and email providers including Google, Microsoft, and Yahoo.

Here is an expert of Bitdefender’s research paper:

“Particularly interesting about Terdot, though, is that, just like the Netrepser targeted attack, it leverages legitimate applications such as certificate injection tools for nefarious purposes, rather than specialized utilities developed in house. Another discovery worth mentioning is that, even if Terdot is technically a Banker Trojan, its capabilities go way beyond its primary purpose: it can also eavesdrop on and modify traffic on most social media and email platforms. Its automatic update capabilities allow it to download and execute any files when requested by its operator, meaning it can develop new capabilities.”

The infection process

The trojan is mainly distributed through websites infected with the SunDown Exploit Kit, but it could also arrive in malicious emails with a fake PDF icon button.

 

If the link is clicked, the trojan executes a JavaScript code that downloads and run the malware file, allowing it to hack Facebook, Youtube, Twitter, and other social websites.

In order to avoid detection, the trojan uses a complex network of downloaders to allow the download of Terdot in pieces.

 

Terdot can bypass TLS enforced restrictions by generating its own Certification Authority (CA) and generating certificates for every domain the victim visits.

Resources

The Register, TheHackerNews, & Bitdefender Labs.

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Mohamad El Hout, MBA, M.Eng., CISSP

Mohamad is an entrepreneur and a Senior Security Consultant dealing with the design and delivery of standard and complex security gateway solutions, covering a wide range of cutting edge technologies. His interests include business, technology, leadership, sports, and the continuous pursuit of knowledge.

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