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Elastic Docs ›Elastic Security Solution [8.8] ›Detections and alerts ›Prebuilt rule reference

Suspicious Emond Child Process

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Suspicious Emond Child Process

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Identifies the execution of a suspicious child process of the Event Monitor Daemon (emond). Adversaries may abuse this service by writing a rule to execute commands when a defined event occurs, such as system start up or user authentication.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: macOS
  • Use Case: Threat Detection
  • Tactic: Persistence
  • Data Source: Elastic Defend

Version: 105

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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process where host.os.type == "macos" and event.type in ("start", "process_started") and
 process.parent.name : "emond" and
 process.name : (
   "bash",
   "dash",
   "sh",
   "tcsh",
   "csh",
   "zsh",
   "ksh",
   "fish",
   "Python",
   "python*",
   "perl*",
   "php*",
   "osascript",
   "pwsh",
   "curl",
   "wget",
   "cp",
   "mv",
   "touch",
   "echo",
   "base64",
   "launchctl")

Framework: MITRE ATT&CKTM

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