{
  "name": "Firewall block surge",
  "description": "UFW is dropping far more inbound connections than usual -- typically a scan in progress",
  "query": "service=system ufw_action=BLOCK earliest=-15m | stats count",
  "query_language": "spl",
  "condition_type": "threshold",
  "eval_interval_seconds": 120,
  "for_minutes": 0,
  "notification_target_id": "__TARGET_SECURITY__",
  "enabled": true,
  "comparator": "gt",
  "threshold_value": 20
}