Hayabusa high test sigma

Suspicious Service Installation Script

Detects suspicious service installation scripts

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Detection Logic

{
  "system": {
    "Channel": "System"
  },
  "selection_eid": {
    "Provider_Name": "Service Control Manager",
    "EventID": 7045
  },
  "selection_cmd_flags": {
    "ImagePath
| contains
| windash": [
      " -c ",
      " -r ",
      " -k "
    ]
  },
  "selection_binaries": {
    "ImagePath
| contains": [
      "cscript",
      "mshta",
      "powershell",
      "pwsh",
      "regsvr32",
      "rundll32",
      "wscript"
    ]
  },
  "condition": "system and (all of selection_*)"
}

False Positives

  • ⚠ Unknown

Field Validations

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