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
Techniques Used
| Domain | ID | Name | Use | |
|---|---|---|---|---|
| Enterprise | T1001 | .003 | Data Obfuscation: 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 | T1573 | .001 | Encrypted Channel: 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 | T1056 | .001 | Input Capture: Keylogging | |
| Enterprise | T1095 | Non-Application Layer Protocol |
Some variants of FakeM use SSL to communicate with C2 servers.[1] |
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Groups That Use This Software
| ID | Name | References |
|---|---|---|
| G0029 | Scarlet Mimic |