Malicious LSASS Memory Dump via comsvcs.dll MiniDump (via process_creation)
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-05-18
- Updated
- 2026-08-28
ATT&CK techniques
Cred AccessRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects credential theft where rundll32 invokes the MiniDump export of comsvcs.dll to dump the memory of the LSASS process to disk, a technique observed in Akira ransomware intrusions. The resulting dump is later parsed offline to recover plaintext credentials and hashes.
Reporting behind it
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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