Dump de hives do Registro (SECURITY / SAM / SYSTEM) // via reg.exe save — Credential Access / LSA Secrets
This rule detects the dumping of sensitive Windows Registry hives (SECURITY, SAM, and SYSTEM) using tools like reg.exe, esentutl.exe, regedit.exe, or by leveraging Volume Shadow Copy services (vssadmin/diskshadow). These hives are targeted by attackers for credential access, specifically to extract LSA secrets, local account hashes, and bootkeys required to decrypt credentials offline. The rule calculates a risk score based on the combination of hives dumped, the method used, the output destination, and the parent process context, flagging 'complete' dumps (SAM+SECURITY+SYSTEM) as critical.
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