Suspicious C2Looper Command Execution via OneDrive Spawning Cmd (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-11-06
Updated
2026-11-06

ATT&CK techniques

Execution
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Persistence

  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 the OneDrive executable spawning cmd.exe which occurs when the side loaded C2Looper DLL runs shell commands received from its command and control server. OneDrive launching a command interpreter is anomalous.

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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.