Suspicious File Write to System Directory

Ankit Mehta@Secvyn

•updated Jun 30, 2026•0•0•1

This rule detects the creation or modification of executable files (.exe, .dll, .sys) within critical Windows system directories (C:\Windows\System32\ or C:\Windows\SysWOW64\). Such activity can indicate an attempt to establish persistence, elevate privileges, or inject malicious code into legitimate system processes.