Malicious Systemd Service Persistence via ExecStartPost Hidden Path on Linux

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1543.002Systemd Service
Priv Esc
- T1543.002Systemd Service
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects modification of a systemd unit that adds an ExecStartPost directive pointing to a payload under /var/tmp which the chkstart tool from the exposed Docker API campaign uses to inject a malicious loader into legitimate services for persistence.

Reporting behind it

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Malicious Systemd Service Persistence via ExecStartPost Hidden Path on Linux

Pivot detection · T1543.002 · 9 related

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