sigmahighHunting

LSASS Process Dump Artefact In CrashDumps Folder

Detects the presence of an LSASS dump file in the "CrashDumps" folder. This could be a sign of LSASS credential dumping. Techniques such as the LSASS Shtinkering have been seen abusing the Windows Error Reporting to dump said process.

MITRE ATT&CK

T1003.001

credential-access

Detection Query

selection:
  TargetFilename|startswith: C:\Windows\System32\config\systemprofile\AppData\Local\CrashDumps\
  TargetFilename|contains: lsass.exe.
  TargetFilename|endswith: .dmp
condition: selection

Author

@pbssubhash

Created

2022-12-08

Data Sources

windowsFile Events

Platforms

windows

References

Tags

attack.credential-accessattack.t1003.001

Raw Content

title: LSASS Process Dump Artefact In CrashDumps Folder
id: 6902955a-01b7-432c-b32a-6f5f81d8f625
status: test
description: Detects the presence of an LSASS dump file in the "CrashDumps" folder. This could be a sign of LSASS credential dumping. Techniques such as the LSASS Shtinkering have been seen abusing the Windows Error Reporting to dump said process.
references:
    - https://github.com/deepinstinct/Lsass-Shtinkering
    - https://media.defcon.org/DEF%20CON%2030/DEF%20CON%2030%20presentations/Asaf%20Gilboa%20-%20LSASS%20Shtinkering%20Abusing%20Windows%20Error%20Reporting%20to%20Dump%20LSASS.pdf
author: '@pbssubhash'
date: 2022-12-08
tags:
    - attack.credential-access
    - attack.t1003.001
logsource:
    product: windows
    category: file_event
detection:
    selection:
        TargetFilename|startswith: 'C:\Windows\System32\config\systemprofile\AppData\Local\CrashDumps\'
        TargetFilename|contains: 'lsass.exe.'
        TargetFilename|endswith: '.dmp'
    condition: selection
falsepositives:
    - Rare legitimate dump of the process by the operating system due to a crash of lsass
level: high