{
  "model_id": "SOC.082",
  "name": "Large Outbound Transfer",
  "description": "Outbound data transfer exceeding 100 MB — possible exfiltration.",
  "threshold": 0.8,
  "evaluations": [
    {
      "name": "Conn",
      "type": "comparison",
      "left": "event.type",
      "operator": "==",
      "right": "network.connection.established",
      "weight": 2
    },
    {
      "name": "LargeXfer",
      "type": "comparison",
      "left": "event.raw.bytes_sent",
      "operator": "\u003e",
      "right": 104857600,
      "weight": 5
    },
    {
      "name": "Logic",
      "type": "logical",
      "operator": "AND",
      "operands": [
        "Conn",
        "LargeXfer"
      ],
      "weight": 5
    }
  ],
  "actions": [
    {
      "type": "emit_alert",
      "reason": "Large outbound transfer (\u003e100 MB) — possible exfiltration."
    }
  ],
  "mitre_tactics": [
    "Exfiltration"
  ],
  "mitre_techniques": [
    "T1041",
    "T1567"
  ],
  "severity": "critical",
  "observables": [
    "event.raw.remote_ip"
  ]
}