Malicious NTDS Database Staging to Audit Directory (via file_event)

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-09-06
Updated
2026-09-06

ATT&CK techniques

Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule detects creation of an ntds.dit Active Directory database copy under a C drive audit Active Directory path. During the Anubis ransomware intrusion the operators exfiltrated domain credentials by copying the NTDS database into an audit directory and archiving it, an activity that does not occur during normal operations.

Related detections9 linkedT1003.003 — drag to rearrange
Malicious NTDS.dit Extraction via Ntdsutil (via process_creation)
Malicious NTDS Extraction via ntdsutil IFM (via process_creation)
IFM Creation Detected from Commandline - Installation from Media (via process_creation)
Malicious Credential Hive Copy from Volume Shadow Copy
Malicious File Copy via Esentutl Volume Shadow Access (via process_creation)
Malicious NTDS Extraction via NetExec (via process_creation)
Malicious Active Directory Database Dump via ntdsutil IFM (via process_creation)
Malicious NTDS Extraction via Ntdsutil IFM Media Creation
Malicious NTDS.dit Extraction via ntdsutil IFM Snapshot (via process_creation)
Malicious NTDS Database Staging to Audit Directory (via file_event)
Pivot detection · T1003.003 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.