T1553 Subvert Trust Controls: Bulk MOTW Removal & Signing Bypass
Detects multiple methods of tampering with Windows security controls, including disabling Windows SmartScreen via registry, bulk removal of Mark-of-the-Web (Zone.Identifier) via scripting, and disabling driver signature enforcement (TestSigning/NoIntegrityChecks) using BCDedit. These actions are indicative of an adversary attempting to bypass security protections to facilitate the execution of untrusted or malicious code.
Microsoft Sentinel (KQL)

