Credential Dumping Activity By Python Based Tool

calendar Dec 4, 2023 · attack.credential_access attack.t1003.001 attack.s0349  ·
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Detects LSASS process access for potential credential dumping by a Python-like tool such as LaZagne or Pypykatz.

Sigma rule (View on GitHub)

 1title: Credential Dumping Activity By Python Based Tool
 2id: f8be3e82-46a3-4e4e-ada5-8e538ae8b9c9
 3related:
 4    - id: 4b9a8556-99c4-470b-a40c-9c8d02c77ed0
 5      type: obsoletes
 6    - id: 7186e989-4ed7-4f4e-a656-4674b9e3e48b
 7      type: obsoletes
 8status: stable
 9description: Detects LSASS process access for potential credential dumping by a Python-like tool such as LaZagne or Pypykatz.
10references:
11    - https://twitter.com/bh4b3sh/status/1303674603819081728
12    - https://github.com/skelsec/pypykatz
13author: Bhabesh Raj, Jonhnathan Ribeiro
14date: 2023/11/27
15modified: 2023/11/29
16tags:
17    - attack.credential_access
18    - attack.t1003.001
19    - attack.s0349
20logsource:
21    category: process_access
22    product: windows
23detection:
24    selection:
25        TargetImage|endswith: '\lsass.exe'
26        CallTrace|contains|all:
27            - '_ctypes.pyd+'
28            - ':\Windows\System32\KERNELBASE.dll+'
29            - ':\Windows\SYSTEM32\ntdll.dll+'
30        CallTrace|contains:
31            - 'python27.dll+'
32            - 'python3*.dll+'
33        GrantedAccess: '0x1FFFFF'
34    condition: selection
35falsepositives:
36    - Unknown
37level: high

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