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Windows Registry Delete of Credential Guard EnableVirtualizationBasedSecurity or LsaCfgFlags

Flags deletion of Credential Guard/LSA-related registry values that may weaken virtualization-based secret protection.

FreeReviewedSigma · High · v1
Product
windows
Category
registry_delete
Author
Swachchhanda Shrawan Poudel (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2025-12-26
Updated
2026-07-30
AnalysisDetection

ATT&CK techniques

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule identifies registry value deletions associated with Windows Credential Guard and LSA configuration, including Device Guard and LsaCfgFlags keys. Removing these values can be used to undermine virtualization-based security protections that help keep secrets isolated. It relies on Windows registry delete telemetry that reports the TargetObject path ending in specific Credential Guard-related registry value names.

Reporting behind it

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Malicious FIN7 AvNeutralizer EDR Killer Execution via Masqueraded Binary (via process_creation)
Suspicious Process Explorer Kernel Driver Dropped as PED.sys via File Creation (via file_event)
Windows Registry Delete of Credential Guard EnableVirtualizationBasedSecurity or LsaCfgFlags
Pivot detection · T1685 · 9 related

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