Credential Dumping via Reg Save of SAM Hive

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-13
Updated
2026-09-13

ATT&CK techniques

Cred Access
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects reg.exe saving the HKLM SAM registry hive to disk, an offline credential extraction step observed in Operation Soft Cell. Exporting the SAM hive lets attackers crack local account hashes away from the endpoint.

Related detections9 linkedT1003.002 — drag to rearrange
Malicious Registry Hive Dump via reg save
Suspicious Archiving of Registry Hives via WinRAR (UAT-8099)
Malicious Registry Hive Dump of SAM or SYSTEM via Reg Save (via process_creation)
Malicious Credential Hive Copy from Volume Shadow Copy
Malicious Secretdump Password Dumping via SMB Admin Share (via security)
Malicious Registry Hive Dump of SAM and SYSTEM via Reg Save (via process_creation)
Suspicious SAM Registry Hive Dump to Windows Temp by BianLian
Malicious SAM and SYSTEM Hive Dump via reg save (via process_creation)
Malicious Mimikatz Credential Access Module Invocation
Credential Dumping via Reg Save of SAM Hive
Pivot detection · T1003.002 · 9 related

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