Sigma high experimental sigma

Shai-Hulud Malicious GitHub Workflow Creation

Detects creation of shai-hulud-workflow.yml file associated with Shai Hulud worm targeting NPM supply chain attack that exfiltrates GitHub secrets

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Detection Logic

{
  "selection": {
    "TargetFilename
| endswith": [
      ".github/workflows/shai-hulud-workflow.yaml",
      ".github/workflows/shai-hulud-workflow.yml",
      ".github/workflows/shai-hulud.yaml",
      ".github/workflows/shai-hulud.yml"
    ]
  },
  "condition": "selection"
}

False Positives

  • ⚠ Unlikely

Field Validations

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