Sunturai
Back to results
MediumSigmaHQfrack113

Allow Exceptions in Microsoft Defender Firewall via Registry

Detects the degradation of the system firewall security by the DoNotAllowExceptions policy value being set to 0 (DWORD 0x00000000), which re-enables application and port exceptions in the Microsoft Defender Firewall…

Description

Detects the degradation of the system firewall security by the DoNotAllowExceptions policy value being set to 0 (DWORD 0x00000000), which re-enables application and port exceptions in the Microsoft Defender Firewall and can restore network paths that a hardened profile would block.

Detection logic

Detection requirements

Platform
Windows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
windows
Log source category
registry_set

Known benign triggers

  • Unknown

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice