Analytics BIOC High

Memory dumping with comsvcs.dll

A process memory dump was performed using comsvcs.dll MiniDump. This method is commonly used by attackers to dump Lsass.exe (Local Security Authority Subsystem Service) process memory to a file, so they could later extract credentials from the memory dump.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Credential Access (TA0006)
ATT&CK techniques: OS Credential Dumping (T1003) OS Credential Dumping: LSASS Memory (T1003.001)
Attacker's goals:

Attackers may attempt to dump the memory of sensitive processes.

Investigative actions:

Check whether the executing process is benign and if this was a desired behavior as part of its normal execution flow.

Test period:
N/A (single event)
Deduplication:
6 Hours