Verclsid.exe Runs COM Object

calendar Oct 9, 2025 · attack.defense-evasion attack.t1218  ·
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Detects when verclsid.exe is used to run COM object via GUID

Sigma rule (View on GitHub)

 1title: Verclsid.exe Runs COM Object
 2id: d06be4b9-8045-428b-a567-740a26d9db25
 3status: test
 4description: Detects when verclsid.exe is used to run COM object via GUID
 5references:
 6    - https://lolbas-project.github.io/lolbas/Binaries/Verclsid/
 7    - https://gist.github.com/NickTyrer/0598b60112eaafe6d07789f7964290d5
 8    - https://bohops.com/2018/08/18/abusing-the-com-registry-structure-part-2-loading-techniques-for-evasion-and-persistence/
 9author: Victor Sergeev, oscd.community
10date: 2020-10-09
11modified: 2025-10-07
12tags:
13    - attack.defense-evasion
14    - attack.t1218
15logsource:
16    category: process_creation
17    product: windows
18detection:
19    selection_img:
20        - Image|endswith: '\verclsid.exe'
21        - OriginalFileName: 'verclsid.exe'
22    selection_cli:
23        CommandLine|contains|all:
24            - '/S'
25            - '/C'
26    filter_main_runtimebroker:
27        ParentImage|endswith: 'C:\Windows\System32\RuntimeBroker.exe'
28        CommandLine|contains|all:
29            - 'verclsid.exe" /S /C {'
30            - '} /I {'
31    condition: all of selection_* and not 1 of filter_main_*
32fields:
33    - CommandLine
34falsepositives:
35    - Unknown
36level: medium

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