Credential Dumping Attempt Via WerFault
Detects attempts to dump LSASS process memory using WerFault.exe. This technique is often used by tools like Mimikatz, NanoDump, Invoke-Mimikatz, Procdump, or Taskmgr to extract credentials from the Local Security Authority Subsystem Service (LSASS) process. The rule specifically looks for WerFault.exe accessing lsass.exe with a GrantedAccess of '0x1FFFFF', which indicates full access.
Sigma
