DPAPI Domain Master Key Backup Attempt

calendar Mar 15, 2023 · attack.credential_access attack.t1003.004  ·
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Detects anyone attempting a backup for the DPAPI Master Key. This events gets generated at the source and not the Domain Controller.

Sigma rule (View on GitHub)

 1title: DPAPI Domain Master Key Backup Attempt
 2id: 39a94fd1-8c9a-4ff6-bf22-c058762f8014
 3status: test
 4description: Detects anyone attempting a backup for the DPAPI Master Key. This events gets generated at the source and not the Domain Controller.
 5references:
 6    - https://threathunterplaybook.com/hunts/windows/190620-DomainDPAPIBackupKeyExtraction/notebook.html
 7author: Roberto Rodriguez @Cyb3rWard0g
 8date: 2019/08/10
 9modified: 2023/03/15
10tags:
11    - attack.credential_access
12    - attack.t1003.004
13logsource:
14    product: windows
15    service: security
16detection:
17    selection:
18        EventID: 4692
19    condition: selection
20fields:
21    - ComputerName
22    - SubjectDomainName
23    - SubjectUserName
24falsepositives:
25    - If a computer is a member of a domain, DPAPI has a backup mechanism to allow unprotection of the data. Which will trigger this event.
26level: medium

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