Malicious Flax Typhoon SAM and SECURITY Registry Hive Dump via reg save (via process_creation)

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.exe to save the SAM SECURITY or SYSTEM registry hives to a file. Flax Typhoon dumped these hives to extract local account password hashes for offline cracking and credential access.

Reporting behind it

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Malicious Registry Hive Dump via reg save of SAM SYSTEM SECURITY

Suspicious Credential Dump via Registry Hive Save

Malicious Flax Typhoon SAM and SECURITY Registry Hive Dump via reg save (via process_creation)

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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