SigmaHQ/rules/windows/sysmon/sysmon_wmiprvse_wbemcomn_dll_hijack.yml

action: global
title: Wmiprvse Wbemcomn DLL Hijack
description: Detects a threat actor creating a file named `wbemcomn.dll` in the `C:\Windows\System32\wbem\` directory over the network and loading it for a WMI DLL Hijack scenario.
status: experimental
date: 2020/10/12
modified: 2021/06/10
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
tags:
    - attack.execution
    - attack.t1047
    - attack.lateral_movement
    - attack.t1021.002
references:
    - https://threathunterplaybook.com/notebooks/windows/08_lateral_movement/WIN-201009173318.html
falsepositives:
    - Unknown
level: critical
--- 
id: 614a7e17-5643-4d89-b6fe-f9df1a79641c
logsource:
    product: windows
    category: file_event
detection:
    selection:
        Image: System
        TargetFilename|endswith: '\wbem\wbemcomn.dll'
    condition: selection
---
id: 7707a579-e0d8-4886-a853-ce47e4575aaa
logsource:
    product: windows
    category: image_load
detection: 
    selection:
        Image|endswith: '\wmiprvse.exe'
        ImageLoaded|endswith: '\wbem\wbemcomn.dll'
    condition: selection