Malicious Credential Hive Dump via Reg Save

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1003.002Security Account Manager
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects use of reg save to export the SAM registry hive which the REF0657 intrusion used to steal local account password hashes for offline cracking. Saving the SAM hive is a credential access action with no benign use case in normal administration.

Reporting behind it

Related detections9 linkedT1003.002 — drag to rearrange

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Suspicious Registry Hive Export of SAM and SECURITY for Credential Theft after FortiClient EMS Exploitation

Malicious Registry Hive Dump via reg save

Malicious SAM and SYSTEM Registry Hive Credential Dump via reg.exe (via process_creation)

Malicious Registry Hive Theft from Shadow Copy via Print LOLBIN

Malicious Volume Shadow Copy Access via Mklink to GLOBALROOT

Malicious Credential Hive Dump via Reg Save

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.

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