Suspicious Registry SYSTEM 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 reg.exe saving the HKLM SYSTEM hive to a local file, a credential access technique used in the MS-SQL intrusion to extract secrets for offline processing. Saving the SYSTEM hive to a user writable path is rarely part of legitimate administration.

Reporting behind it

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Suspicious Registry SYSTEM 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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