Possible Impacket SecretDump Remote Activity

calendar Oct 17, 2023 · attack.credential_access attack.t1003.002 attack.t1003.004 attack.t1003.003  ·
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Detect AD credential dumping using impacket secretdump HKTL

Sigma rule (View on GitHub)

 1title: Possible Impacket SecretDump Remote Activity
 2id: 252902e3-5830-4cf6-bf21-c22083dfd5cf
 3status: test
 4description: Detect AD credential dumping using impacket secretdump HKTL
 5references:
 6    - https://blog.menasec.net/2019/02/threat-huting-10-impacketsecretdump.html
 7author: Samir Bousseaden, wagga
 8date: 2019/04/03
 9modified: 2022/08/11
10tags:
11    - attack.credential_access
12    - attack.t1003.002
13    - attack.t1003.004
14    - attack.t1003.003
15logsource:
16    product: windows
17    service: security
18    definition: 'The advanced audit policy setting "Object Access > Audit Detailed File Share" must be configured for Success/Failure'
19detection:
20    selection:
21        EventID: 5145
22        ShareName: '\\\\\*\\ADMIN$'  # looking for the string  \\*\ADMIN$
23        RelativeTargetName|contains|all:
24            - 'SYSTEM32\'
25            - '.tmp'
26    condition: selection
27falsepositives:
28    - Unknown
29level: high

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