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FakeM

FakeM is a shellcode-based Windows backdoor that has been used by Scarlet Mimic. [1]

ID: S0076
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Type: MALWARE
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Platforms: Windows
Version: 1.1
Created: 31 May 2017
Last Modified: 27 March 2020
Enterprise Layer
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Techniques Used

Domain ID Name Use
Enterprise T1573 .001 加密通道: Symmetric Cryptography

The original variant of FakeM encrypts C2 traffic using a custom encryption cipher that uses an XOR key of "YHCRA" and bit rotation between each XOR operation. Some variants of FakeM use RC4 to encrypt C2 traffic.[1]
Enterprise T1001 .003 数据混淆: Protocol or Service Impersonation

FakeM C2 traffic attempts to evade detection by resembling data generated by legitimate messenger applications, such as MSN and Yahoo! messengers. Additionally, some variants of FakeM use modified SSL code for communications back to C2 servers, making SSL decryption ineffective.[1]
Enterprise T1056 .001 输入捕获: Keylogging

FakeM contains a keylogger module.[1]
Enterprise T1095 非应用层协议

Some variants of FakeM use SSL to communicate with C2 servers.[1]

Groups That Use This Software

ID Name References
G0029 Scarlet Mimic

[1]

References

  1. Falcone, R. and Miller-Osborn, J.. (2016, January 24). Scarlet Mimic: Years-Long Espionage Campaign Targets Minority Activists. Retrieved February 10, 2016.