Malicious Sed Tampering of Ivanti Debug and Audit Logs (via process_creation)

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects sed being used to edit the Ivanti Connect Secure debuglog and audit.log files in place, the selective log tampering technique used during zero-day exploitation to remove evidence of PHASEJAM web shell activity. In-place editing of appliance logs indicates indicator removal by an intruder.

Reporting behind it

Related detections9 linkedT1685.006 — drag to rearrange

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Malicious Sed Tampering of Ivanti Debug and Audit Logs (via process_creation)

Pivot detection · T1685.006 · 9 related

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