Detection rules › Sigma

Computer System Reconnaissance Via Wmic.EXE

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects execution of wmic utility with the "computersystem" flag in order to obtain information about the machine such as the domain, username, model, etc.

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1047 Windows Management Instrumentation

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: computersystem

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
  • computersystem
Imageends_with
  • \wmic.exe corpus 37 (sigma 37)
OriginalFileNameeq
  • wmic.exe corpus 33 (sigma 33)