Malicious LSASS Memory Dump via Comsvcs MiniDump
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-10-04
- Updated
- 2026-10-04
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 rundll32 invoking the comsvcs.dll MiniDump export against a process, the living-off-the-land technique used by the profiled APT actors to dump LSASS memory. Extracting the LSASS process image yields credentials for lateral movement without dropping a dedicated dumping tool. This command pattern has virtually no legitimate use.
Reporting behind it
- intel471.comhttps://www.intel471.com/blog/hunting-apts-from-state-policy-to-ttps
- attack.mitre.orghttps://attack.mitre.org/techniques/T1003/001/
- arcticwolf.comhttps://arcticwolf.com/resources/blog/exploitation-of-cve-2026-0257-leads-to-qilin-ransomware/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1003/
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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