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Psylo is a shellcode-based Trojan that has been used by Scarlet Mimic. It has similar characteristics as FakeM. [1]

ID: S0078
Platforms: Windows
Version: 1.0
Created: 31 May 2017
Last Modified: 17 October 2018

Techniques Used

Domain ID Name Use
Enterprise T1041 Exfiltration Over Command and Control Channel

Psylo exfiltrates data to its C2 server over the same protocol as C2 communications.[1]

Enterprise T1083 File and Directory Discovery

Psylo has commands to enumerate all storage devices and to find all files that start with a particular string.[1]

Enterprise T1105 Remote File Copy

Psylo has a command to download a file to the system from its C2 server.[1]

Enterprise T1071 Standard Application Layer Protocol

Psylo uses HTTPS for C2.[1]

Enterprise T1099 Timestomp

Psylo has a command to conduct timestomping by setting a specified file’s timestamps to match those of a system file in the System32 directory.[1]

Groups That Use This Software

ID Name References
G0029 Scarlet Mimic [1]