Hayabusa medium test sigma

PUA - Advanced Port Scanner Execution

Detects the use of Advanced Port Scanner.

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Detection Logic

{
  "process_creation": {
    "EventID": 4688,
    "Channel": "Security"
  },
  "selection_img": [
    {
      "NewProcessName
| contains": "\\advanced_port_scanner"
    },
    {
      "OriginalFileName
| contains": "advanced_port_scanner"
    },
    {
      "Description
| contains": "Advanced Port Scanner"
    }
  ],
  "selection_cli": {
    "CommandLine
| contains
| all": [
      "/portable",
      "/lng"
    ]
  },
  "condition": "process_creation and (1 of selection_*)"
}

False Positives

  • ⚠ Legitimate administrative use
  • ⚠ Tools with similar commandline (very rare)

Field Validations

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