WMI Persistence - Command Line Event Consumer

Hunt Hypothesis

Detects WMI command line event consumers

Detection Rule

Sigma (Original)

title: WMI Persistence - Command Line Event Consumer
id: 05936ce2-ee05-4dae-9d03-9a391cf2d2c6
status: test
description: Detects WMI command line event consumers
references:
    - https://www.eideon.com/2018-03-02-THL03-WMIBackdoors/
author: Thomas Patzke
date: 2018-03-07
modified: 2021-11-27
tags:
    - attack.privilege-escalation
    - attack.t1546.003
    - attack.persistence
logsource:
    category: image_load
    product: windows
detection:
    selection:
        Image: 'C:\Windows\System32\wbem\WmiPrvSE.exe'
        ImageLoaded|endswith: '\wbemcons.dll'
    condition: selection
falsepositives:
    - Unknown (data set is too small; further testing needed)
level: high

KQL (Microsoft 365 Defender)

DeviceImageLoadEvents
| where InitiatingProcessFolderPath =~ "C:\\Windows\\System32\\wbem\\WmiPrvSE.exe" and FolderPath endswith "\\wbemcons.dll"

Required Data Sources

False Positive Guidance

• Unknown (data set is too small; further testing needed)

MITRE ATT&CK Context

• Tactic: Privilege Escalation
• Tactic: Persistence
• Technique: T1546.003 — T1546.003

References

• https://www.eideon.com/2018-03-02-THL03-WMIBackdoors/
• SigmaHQ Rule