Malicious LSASS Credential Dumping via Comsvcs MiniDump (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 the use of the built-in comsvcs.dll MiniDump export (typically invoked through rundll32) to write a memory dump of a target process such as LSASS to disk. Credential access via LSASS memory is a top technique in the Red Canary Threat Detection Report, giving adversaries plaintext credentials and hashes for lateral movement. Because this pattern relies on a signed system DLL, detecting the comsvcs MiniDump invocation surfaces stealthy credential theft.

Reporting behind it

Related detections9 linkedT1003.001 — drag to rearrange

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Malicious LSASS Memory Dump via procdump

Suspicious LSASS Process Enumeration via tasklist Filter

Malicious LSASS Credential Dumping via Comsvcs MiniDump (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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