Setuid Binary Execution via Web Shell

Darshan Thummar@Mighty

•updated Jun 10, 2026•0•0•1

This rule detects attempts to execute setuid binaries via a web shell by looking for the string "chmod+s" in HTTP URI requests. This indicates an attacker trying to set the SUID bit on a file, which is a common technique for privilege escalation on Linux/Unix systems.