Microsoft Defender Tamper Protection Trigger

Severity: high
Author: Bhabesh Raj, Nasreddine Bencherchali
Source: upstream

Detects blocked attempts to change any of Defender's settings such as "Real Time Monitoring" and "Behavior Monitoring"

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1562.001` Impair Defenses: Disable or Modify Tools

Event coverage

Provider	Event ID	Title
Windows-Defender	5013

Stages and Predicates

Stage 1: `selection`

or:
Value|endswith: '\Real-Time Protection\DisableBehaviorMonitoring'
Value|endswith: '\Real-Time Protection\DisableIOAVProtection'
Value|endswith: '\Real-Time Protection\DisableRealtimeMonitoring'
Value|endswith: '\Real-Time Protection\DisableScriptScanning'
Value|endswith: '\Windows Defender\DisableAntiSpyware'
Value|endswith: '\Windows Defender\DisableAntiVirus'
Value|endswith: '\Windows Defender\Scan\DisableArchiveScanning'
Value|endswith: '\Windows Defender\Scan\DisableScanningNetworkFiles'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.