Suspicious Python Execution of Fake Sysmon Script From Config Directory

ATT&CK techniques

Persistence → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.002Systemd Service
Priv Esc
- T1543.002Systemd Service
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a Python interpreter executing a sysmon.py script from a hidden .config/sysmon directory on Linux. The LiteLLM AI gateway supply-chain implant masqueraded as a sysmon service under ~/.config/sysmon and installed systemd persistence as reported by Kaspersky. Reusing the Windows Sysmon name for a Linux Python script in a user config path is a masquerading indicator of the backdoor.

Reporting behind it

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Suspicious Python Execution of Fake Sysmon Script From Config Directory

Pivot detection · T1036.005 · 9 related

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