Suspicious Procfs Comm Overwrite Attempt with Kernel Thread Name

Rule Info

Name
Suspicious Procfs Comm Overwrite Attempt with Kernel Thread Name
Author
Swachchhanda Shrawan Poudel (Nextron Systems)
Description
Detects attempts to overwrite a process's displayed name in /proc/[pid]/comm with a kernel worker thread name. Attackers use this technique after launching a renamed binary or LOLBin (e.g. curl, wget) to retroactively change how the process appears in monitoring tools, providing a second layer of camouflage beyond argv[0] spoofing.
Date
2026-10-16 00:00:00
Modified
None
Id
4c9f3b71-e82a-4d56-b1f3-7a2e0c5d9f13
Tags
attack.stealth attack.t1036.005
Type
Nextron Sigma feed only (private)

Rule History