Abnormal LSASS Process Access and Injection (RedCanary Threat Detection Report)

 1title: Abnormal LSASS Process Access and Injection (RedCanary Threat Detection Report)
 2id: c62c85ad-bbe7-4937-b77a-2cc984a1449d
 3status: experimental
 4description: Detects suspicious cross-process events where LSASS is accessed. Part of the RedCanary 2023 Threat Detection Report.
 5references:
 6    - https://redcanary.com/threat-detection-report/techniques/lsass-memory/
 7author: RedCanary, Sigma formatting by Micah Babinski
 8date: 2023/05/10
 9tags:
10    - attack.credential_access
11    - attack.t1003.001
12logsource:
13    category: process_access
14    product: windows
15detection:
16    selection:
17        SourceImage|endswith:
18            - '\powershell.exe'
19            - '\taskmgr.exe'
20            - '\rundll32.exe'
21            - '\procdump.exe'
22            - '\procexp.exe'
23        TargetImage|endswith: '\lsass.exe'
24    condition: selection
25falsepositives:
26    - Unknown
27level: low```

References

• LSASS Memory - Red Canary Threat Detection Report

  

  Because of the amount of data it stores in memory, LSASS is a common target for adversaries looking to steal sensitive credentials.

  
  Read More

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• Process Memory Dump via RdrLeakDiag.EXE
• Suspicious Dump64.exe Execution