Suspicious OneNote Spawning Command or Script Interpreter via Spear-Phishing (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-10-30
Updated
2026-10-30

ATT&CK techniques

Initial Access → Execution
  1. Recon

  2. Resource Dev

  3. Persistence

  4. Priv Esc

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects the OneNote application spawning command shells or scripting interpreters, the execution chain triggered when a user opens an embedded malicious file in a OneNote spear phishing attachment.

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Pivot detection · T1059 · 9 related

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