Potential Remote Credential Dumping Activity

calendar Nov 2, 2023 · attack.credential_access attack.t1003  ·
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Detects default filenames output from the execution of CrackMapExec and Impacket-secretsdump against an endpoint.

Sigma rule (View on GitHub)

 1title: Potential Remote Credential Dumping Activity
 2id: 6e2a900a-ced9-4e4a-a9c2-13e706f9518a
 3status: test
 4description: Detects default filenames output from the execution of CrackMapExec and Impacket-secretsdump against an endpoint.
 5references:
 6    - https://github.com/Porchetta-Industries/CrackMapExec
 7    - https://github.com/SecureAuthCorp/impacket/blob/master/examples/secretsdump.py
 8author: SecurityAura
 9date: 2022/11/16
10modified: 2023/01/05
11tags:
12    - attack.credential_access
13    - attack.t1003
14logsource:
15    product: windows
16    category: file_event
17detection:
18    selection:
19        Image|endswith: '\svchost.exe'
20        # CommandLine|contains: 'RemoteRegistry' # Uncomment this line if you collect CommandLine data for files events from more accuracy
21        TargetFilename|re: '\\Windows\\System32\\[a-zA-Z0-9]{8}\.tmp$'
22    condition: selection
23falsepositives:
24    - Unknown
25level: high

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