v3_linux_anomalous_user_name.json

{
  "description": "Security: Linux - Rare and unusual users that are not normally active may indicate unauthorized changes or activity by an unauthorized user which may be credentialed access or lateral movement.",
  "groups": ["linux", "security"],
  "analysis_config": {
    "bucket_span": "15m",
    "detectors": [
      {
        "detector_description": "Detects rare usernames.",
        "function": "rare",
        "by_field_name": "user.name",
        "detector_index": 0
      }
    ],
    "influencers": ["host.name", "process.name", "user.name"]
  },
  "allow_lazy_open": true,
  "analysis_limits": {
    "model_memory_limit": "32mb"
  },
  "data_description": {
    "time_field": "@timestamp",
    "time_format": "epoch_ms"
  },
  "custom_settings": {
    "created_by": "ml-module-security-linux-v3",
    "security_app_display_name": "Unusual Linux Username",
    "managed": true,
    "job_revision": 4
  }
}