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Psylo

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

ID: S0078
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Type: MALWARE
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Platforms: Windows
Version: 1.1
Created: 31 May 2017
Last Modified: 30 March 2020
Enterprise Layer
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Techniques Used

Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

Psylo uses HTTPS for C2.[1]
Enterprise T1041 Exfiltration Over C2 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 T1070 .006 Indicator Removal on Host: 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]
Enterprise T1105 Ingress Tool Transfer

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