securityonion/salt/soc/files/soc/alerts.eventfields.json

{
  "default": ["soc_timestamp", "rule.name", "event.severity_label", "source.ip", "source.port", "destination.ip", "destination.port", "rule.gid", "rule.uuid", "rule.category", "rule.rev"],
  ":ossec:": ["soc_timestamp", "rule.name", "event.severity_label", "source.ip", "source.port", "destination.ip", "destination.port", "rule.level", "rule.category", "process.name", "user.name", "user.escalated", "location", "process.name" ]
}