Malicious LSASS Credential Dump via rundll32 comsvcs.dll (via process_creation)

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 rundll32.exe calling the comsvcs.dll MiniDump export to dump the LSASS process memory. Operators behind The Gentlemen ransomware used this LOLBin technique to harvest domain credentials. Dumping LSASS yields plaintext or hashed credentials that enable lateral movement and domain compromise.

Reporting behind it

Related detections9 linkedT1003.001 — drag to rearrange

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Suspicious Physical Memory Acquisition via WinPmem (via process_creation)

Malicious LSASS Credential Dump via Rundll32 Comsvcs MiniDump via Process Creation (via process_creation)

Suspicious LSASS Credential Access via PowerShell (via process_creation)

Suspicious LSASS Memory Dump via Task Manager After Ivanti Exploitation

Suspicious ProcDump LSASS Memory Dump via process_creation

Malicious Mimikatz Credential Dump Log File Creation (via file_event)

Malicious LSASS Credential Dump via rundll32 comsvcs.dll (via process_creation)

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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