Detection rules › Sigma

Potential Windows Defender Tampering Via Wmic.EXE

Severity
high
Author
frack113
Source
upstream

Detects potential tampering with Windows Defender settings such as adding exclusion using wmic

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1047 Windows Management Instrumentation
Defense EvasionT1562 Impair Defenses

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation

Stages and Predicates

Stage 1: all of selection_img

or:
Image|endswith: '\WMIC.exe'
OriginalFileName: wmic.exe

Stage 2: all of selection_cli

CommandLine|contains: '/Namespace:\\\\root\\Microsoft\\Windows\\Defender'

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.

FieldKindValues
CommandLinematch
  • /Namespace:\\\\root\\Microsoft\\Windows\\Defender
Imageends_with
  • \WMIC.exe corpus 12 (sigma 12)
OriginalFileNameeq
  • wmic.exe corpus 33 (sigma 33)