#Vault7: WikiLeaks reveals ‘Marble’ tool could mask CIA hacks with Russian, Chinese, Arabic

RT
March 31, 2017

WikiLeaks’ latest batch of documents, named ‘Marble’, details CIA hacking tactics and how they can hamper forensic investigators from attributing viruses, trojans and hacking attacks to the spy agency . The tool was in use as recently as 2016.

The third release, which contains 676 source code files for the agency’s secret anti-forensics framework, is part of the CIA’s Core Library of malware, according to a statement from WikiLeaks.

WikiLeaks said Marble hides fragments of texts that would allow for the author of the malware to be identified. WikiLeaks stated the technique is the digital equivalent of a specialized CIA tool which disguises English language text on US produced weapons systems before they are provided to insurgents.

It’s “designed to allow for flexible and easy-to-use obfuscation” as “string obfuscation algorithms” often link malware to a specific developer, according to the whistleblowing site.

The source code released reveals Marble contains test examples in Chinese, Russian, Korean, Arabic and Farsi.

“This would permit a forensic attribution double game, for example by pretending that the spoken language of the malware creator was not American English, but Chinese, but then showing attempts to conceal the use of Chinese, drawing forensic investigators even more strongly to the wrong conclusion,” WikiLeaks explains, “But there are other possibilities, such as hiding fake error messages.”

The code also contains a ‘deobfuscator’ which allows the CIA text obfuscation to be reversed. “Combined with the revealed obfuscation techniques, a pattern or signature emerges which can assist forensic investigators attribute previous hacking attacks and viruses to the CIA.”

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