Detectionhightest
WerFault LSASS Process Memory Dump
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
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Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic1 selector
detection:
selection:
Image: C:\WINDOWS\system32\WerFault.exe
TargetFilename|contains:
- '\lsass'
- 'lsass.exe'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Sub-techniques
Rule Metadata
Rule ID
c3e76af5-4ce0-4a14-9c9a-25ceb8fda182
Status
test
Level
high
Type
Detection
Created
Mon Jun 27
Path
rules/windows/file/file_event/file_event_win_lsass_werfault_dump.yml
Raw Tags
attack.credential-accessattack.t1003.001