ThreatClaw · Investigation Playbook

osquery triage: Dcsync credential replication via mimikatz

osqueryRule sigma-dcsync-credential-replication-via-mimikatzT1003T1003.006
  1. Run the investigation query

    Detects DCSync credential extraction driven from an endpoint by Mimikatz or Invoke-Mimikatz, abusing the Directory Replication Service (DRSUAPI GetNCChanges) to pull secrets such as the krbtgt hash fo osquery query (read-only) — platform(s): windows, tables: process_events. This query IS the collection step: SELECT * FROM process_events WHERE (cmdline LIKE '%lsadump::dcsync%' ESCAPE '\' OR cmdline LIKE '%dcsync /user:%' ESCAPE '\');

  2. Triage the results

    For each returned row:

    • Identify the host, the process/account and the timestamp
    • Determine whether the behavior is legitimate (baseline) or suspicious
    • ATT&CK context (tactic): Credential Access