Hayabusa high test sigma

Suspicious Outlook Macro Created

Detects the creation of a macro file for Outlook.

View Source

Detection Logic

{
  "file_event": {
    "EventID": 11,
    "Channel": "Microsoft-Windows-Sysmon/Operational"
  },
  "selection": {
    "TargetFilename
| endswith": "\\Microsoft\\Outlook\\VbaProject.OTM"
  },
  "filter": {
    "Image
| endswith": "\\outlook.exe"
  },
  "condition": "file_event and (selection and not filter)"
}

False Positives

  • ⚠ Unlikely

Field Validations

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