{
  "model_id": "SOC.012",
  "name": "Multiple New Users Created",
  "description": "Three or more local user accounts created within one hour.",
  "threshold": 0.85,
  "evaluations": [
    {
      "name": "Created",
      "type": "comparison",
      "left": "event.type",
      "operator": "==",
      "right": "identity.user.created",
      "weight": 3
    },
    {
      "name": "Count",
      "type": "aggregation",
      "aggregation": "COUNT",
      "field": "event.actor.user",
      "weight": 5
    },
    {
      "name": "Three",
      "type": "comparison",
      "left": "@Count",
      "operator": "\u003e=",
      "right": 3,
      "weight": 5
    },
    {
      "name": "Logic",
      "type": "logical",
      "operator": "AND",
      "operands": [
        "Created",
        "Three"
      ],
      "weight": 5
    }
  ],
  "actions": [
    {
      "type": "emit_alert",
      "reason": "{@Count} new users on {event.host.hostname} within 1h."
    }
  ],
  "mitre_tactics": [
    "Persistence"
  ],
  "mitre_techniques": [
    "T1136"
  ],
  "severity": "high",
  "observables": [
    "event.host.hostname"
  ]
}