Possible Computer System Recon Through Wmic.EXE (via process_creation)

This rule detects execution of wmic utility with the "computersystem" flag to obtain information about the machine such as the domain, username, model, etc.

SigmamediumWindowsv1
sigma
title: Possible Computer System Recon Through Wmic.EXE (via process_creation)
id: df9f9206-2560-5c01-b8e0-d414b68cfe86
status: stable
description: This rule detects execution of wmic utility with the "computersystem" flag to obtain information about the machine such as the domain, username, model, etc.
references:
    - https://attack.mitre.org/techniques/T1047/
    - https://www.microsoft.com/security/blog/2022/09/07/profiling-dev-0270-phosphorus-ransomware-operations/
author: Huntrule Team
date: 2026-04-05
tags:
    - attack.discovery
    - attack.execution
    - attack.t1047
logsource:
    product: windows
    category: process_creation
detection:
    selection_img:
        - Image|endswith: '\wmic.exe'
        - OriginalFileName: 'wmic.exe'
    selection_cli:
        CommandLine|contains: 'computersystem'
    condition: all of selection_*
falsepositives:
    - Unknown
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_wmic_recon_computersystem/info.yml

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.