Service Installed By Unusual Client - Security

calendar Aug 12, 2024 · attack.privilege-escalation attack.t1543  ·
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Detects a service installed by a client which has PID 0 or whose parent has PID 0

Sigma rule (View on GitHub)

 1title: Service Installed By Unusual Client - Security
 2id: c4e92a97-a9ff-4392-9d2d-7a4c642768ca
 3related:
 4    - id: 71c276aa-49cd-43d2-b920-2dcd3e6962d5
 5      type: similar
 6status: test
 7description: Detects a service installed by a client which has PID 0 or whose parent has PID 0
 8references:
 9    - https://www.elastic.co/guide/en/security/current/windows-service-installed-via-an-unusual-client.html
10    - https://www.x86matthew.com/view_post?id=create_svc_rpc
11    - https://twitter.com/SBousseaden/status/1490608838701166596
12author: Tim Rauch (Nextron Systems), Elastic (idea)
13date: 2022-09-15
14modified: 2023-01-04
15tags:
16    - attack.privilege-escalation
17    - attack.t1543
18logsource:
19    service: security
20    product: windows
21    definition: 'Requirements: The System Security Extension audit subcategory need to be enabled to log the EID 4697'
22detection:
23    selection_eid:
24        EventID: 4697
25    selection_pid:
26        - ClientProcessId: 0
27        - ParentProcessId: 0
28    condition: all of selection_*
29falsepositives:
30    - Unknown
31level: high

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