WerFault LSASS Process Memory Dump

calendar Oct 17, 2023 · attack.credential_access attack.t1003.001  ·
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Detects WerFault creating a dump file with a name that indicates that the dump file could be an LSASS process memory, which contains user credentials

Sigma rule (View on GitHub)

 1title: WerFault LSASS Process Memory Dump
 2id: c3e76af5-4ce0-4a14-9c9a-25ceb8fda182
 3status: test
 4description: Detects WerFault creating a dump file with a name that indicates that the dump file could be an LSASS process memory, which contains user credentials
 5references:
 6    - https://github.com/helpsystems/nanodump
 7author: Florian Roth (Nextron Systems)
 8date: 2022/06/27
 9tags:
10    - attack.credential_access
11    - attack.t1003.001
12logsource:
13    product: windows
14    category: file_event
15detection:
16    selection:
17        Image: C:\WINDOWS\system32\WerFault.exe
18        TargetFilename|contains:
19            - '\lsass'
20            - 'lsass.exe'
21    condition: selection
22falsepositives:
23    - Unknown
24level: high

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