Malicious BlackCat Munchkin Controller Execution via process_creation

PremiumReviewedSigma · High · v1
Product
linux
Category
process_creation
Author
HuntRule
Published
2026-10-19
Updated
2026-10-19

ATT&CK techniques

Lateral Movement
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects the BlackCat Munchkin utility boot sequence that runs the /app/controller binary and then powers off the disposable Linux virtual machine. Munchkin executes its ransomware controller from this hardcoded path inside a throwaway VM to evade host defenses, so this command shape is a high-confidence indicator of Munchkin execution.

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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.