Suspicious Novaservice Binary Executing From Public User Directory (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-08-05
Updated
2026-08-28

ATT&CK techniques

Defense Evasion
  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 execution of novaservice.exe from within the public user profile Documents or Downloads directories, a masquerade used by Boggy Serpens to run implant components from a world-writable location. A service-like binary executing from a user data path rather than a protected system directory indicates a planted payload.

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Suspicious Novaservice Binary Executing From Public User Directory (via process_creation)
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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.