Malicious Mimikatz Credential Dump Log File Creation (via file_event)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003.001LSASS Memory
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of the KB0722.log file in the Windows temp directory, the hardcoded output log that Mimikatz wrote when Jumpy Pisces dumped LSASS credentials during their Play ransomware intrusion. This fixed log path indicates credential theft from process memory.

Reporting behind it

Related detections9 linkedT1003.001 — drag to rearrange

Malicious WDigest UseLogonCredential Enabled for Cleartext Credential Theft (via registry_set)

Suspicious LSASS Memory Dump via Procdump Process Creation

Malicious LSASS Memory Dump via procdump

Suspicious LSASS Process Enumeration via tasklist Filter

Malicious LSASS Credential Dump via rundll32 and comsvcs MiniDump

Malicious LSASS Memory Dump via dllhost ProcDump Masquerade (via process_creation)

Malicious LSASS Credential Extraction via Mimikatz sekurlsa

Malicious LSASS Memory Dump via Comsvcs MiniDump

Malicious Credential Dumping via Mimikatz Sekurlsa Command (via process_creation)

Malicious Mimikatz Credential Dump Log File Creation (via file_event)

Pivot detection · T1003.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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