Malicious NOOPDOOR Registry Persistence under Software License Key (via registry_set)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
registry_set
Author
HuntRule
Published
2026-05-28
Updated
2026-08-28

ATT&CK techniques

Persistence → Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects creation of registry values under Software\License with a hex-named subkey, the storage location used by the NOOPDOOR backdoor deployed by MirrorFace against Japanese organizations. The implant hides encoded configuration and payload data in this uncommon path to survive reboots and blend with legitimate keys.

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Malicious NOOPDOOR Registry Persistence under Software License Key (via registry_set)
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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.