HackTool - Doppelanger LSASS Dumper Execution

Detects the execution of the Doppelanger hacktool which is used to dump LSASS memory via process cloning while evading common detection methods

Sigma rule (View on GitHub)

 1title: HackTool - Doppelanger LSASS Dumper Execution
 2id: d474c8fe-bb69-4ea0-b7d9-f682b56d52d3
 3status: experimental
 4description: Detects the execution of the Doppelanger hacktool which is used to dump LSASS memory via process cloning while evading common detection methods
 5references:
 6    - https://labs.yarix.com/2025/06/doppelganger-an-advanced-lsass-dumper-with-process-cloning/
 7    - https://github.com/vari-sh/RedTeamGrimoire/tree/668e0357072546065729ad623f8c02f7be21bb08/Doppelganger
 8author: Swachchhanda Shrawan Poudel (Nextron Systems)
 9date: 2025-07-01
10tags:
11    - attack.credential-access
12    - attack.t1003.001
13logsource:
14    category: process_creation
15    product: windows
16detection:
17    selection:
18        - Image|endswith: '\Doppelganger.exe'
19        - Hashes|contains:
20              - 'IMPHASH=AB94D5217896ADCD765A06B2D52F0AEB'
21              - 'IMPHASH=65F0EA61156EE0C2A35421926F0C7F78'
22    condition: selection
23falsepositives:
24    - Unknown
25level: high

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