Disable Microsoft Defender Antivirus via registry

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK Tactic	Defense Impairment (TA0112)
ATT&CK Technique	Disable or Modify Tools (T1685)
Severity	Low

Description

Disable Microsoft Defender Antivirus via registry.

Attacker's Goals

• Adversary may attempt to disable defender antivirus to execute malicious tools and move through the network without triggering alarms.

Investigative actions

• Investigate the process that set or create the registry key.