Suspicious Python Interpreter Execution Spawned by Script Host (via process_creation)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-06-23
Updated
2026-08-28

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 python.exe launched by a Windows script host or command shell, matching the multi-stage URL to LNK to VBS to Python chain used in the Cloudflare tunnel RAT campaigns. Bundled Python installers were staged from WebDAV shares before running the interpreter.

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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.