Credential Dumping Attempt Via WerFault

 1title: Credential Dumping Attempt Via WerFault
 2id: e5b33f7d-eb93-48b6-9851-09e1e610b6d7
 3status: test
 4description: Detects process LSASS memory dump using Mimikatz, NanoDump, Invoke-Mimikatz, Procdump or Taskmgr based on the CallTrace pointing to ntdll.dll, dbghelp.dll or dbgcore.dll for win10, server2016 and up.
 5references:
 6    - https://github.com/helpsystems/nanodump/commit/578116faea3d278d53d70ea932e2bbfe42569507
 7author: Florian Roth (Nextron Systems)
 8date: 2012-06-27
 9modified: 2023-11-29
10tags:
11    - attack.credential-access
12    - attack.t1003.001
13    - attack.s0002
14logsource:
15    category: process_access
16    product: windows
17detection:
18    selection:
19        SourceImage|endswith: '\WerFault.exe'
20        TargetImage|endswith: '\lsass.exe'
21        GrantedAccess: '0x1FFFFF'
22    condition: selection
23falsepositives:
24    - Actual failures in lsass.exe that trigger a crash dump (unlikely)
25    - Unknown cases in which WerFault accesses lsass.exe
26level: high