huntrule

Suspicious Run Key Persistence Executing VBScript as WindowsSecurityCheck

PremiumReviewedSigma · High · v1
Product
windows
Category
registry_set
Author
HuntRule
Published
2026-10-21
Updated
2026-10-21
AnalysisDetection

ATT&CK techniques

Persistence → Priv Esc

  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 detects a Run key named WindowsSecurityCheck whose value launches a .vbs script. The KimJongRAT stealer sets this entry to run a VBScript at logon while masquerading as a security component. A security-themed autorun name pointing to a script indicates malicious persistence.

Reporting behind it

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Suspicious Run Key Persistence Executing VBScript as WindowsSecurityCheck
Pivot detection · T1547.001 · 9 related

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