Hayabusa informational test sigma

New PowerShell Instance Created

Detects the execution of PowerShell via the creation of a named pipe starting with PSHost

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Detection Logic

{
  "pipe_created": {
    "EventID": [
      17,
      18
    ],
    "Channel": "Microsoft-Windows-Sysmon/Operational"
  },
  "selection": {
    "PipeName
| startswith": "\\PSHost"
  },
  "condition": "pipe_created and selection"
}

False Positives

  • ⚠ Likely

Field Validations

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