v3_linux_system_process_discovery.json

{
  "description": "Security: Linux - Looks for commands related to system process discovery from an unusual user context. This can be due to uncommon troubleshooting activity or due to a compromised account. A compromised account may be used to engage in system process discovery to increase their understanding of software applications running on a target host or network. This may be a precursor to the selection of a persistence mechanism or a method of privilege elevation.",
  "groups": ["security", "linux"],
  "analysis_config": {
    "bucket_span": "15m",
    "detectors": [
      {
        "detector_description": "Detects rare usernames.",
        "function": "rare",
        "by_field_name": "user.name",
        "detector_index": 0
      }
    ],
    "influencers": ["process.name", "host.name", "process.args", "user.name"]
  },
  "allow_lazy_open": true,
  "analysis_limits": {
    "model_memory_limit": "16mb"
  },
  "data_description": {
    "time_field": "@timestamp"
  },
  "custom_settings": {
    "created_by": "ml-module-security-linux-v3",
    "security_app_display_name": "Unusual Linux Process Discovery Activity",
    "managed": true,
    "job_revision": 4
  }
}