Suspicious Browser Child Processedit

Identifies the execution of a suspicious browser child process. Adversaries may gain access to a system through a user visiting a website over the normal course of browsing. With this technique, the user’s web browser is typically targeted for exploitation.

Rule type: eql

Rule indices:


Severity: high

Risk score: 73

Runs every: 5 minutes

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

Maximum alerts per execution: 100



  • Elastic
  • Host
  • macOS
  • Threat Detection
  • Initial Access
  • Execution

Version: 2 (version history)

Added (Elastic Stack release): 7.12.0

Last modified (Elastic Stack release): 8.4.0

Rule authors: Elastic

Rule license: Elastic License v2

Rule queryedit

process where event.type in ("start", "process_started") and : ("Google Chrome", "Google Chrome Helper*",
"firefox", "Opera", "Safari", "",
"Microsoft Edge") and : ("sh", "bash", "dash", "ksh",
"tcsh", "zsh", "curl", "wget", "python*", "perl*", "php*",
"osascript", "pwsh") and process.command_line != null and not
process.args : ( "/Library/Application
Support/Microsoft/MAU*/Microsoft", "hw.model",
"IOPlatformExpertDevice", "/Volumes/Google Chrome/Google*/Resources/", "--
defaults-torrc", "", "Framework.framework/Vers
Support/Google/Chrome/recovery/*/ChromeRecovery", "$DISPLAY",

Threat mappingedit


Rule version historyedit

Version 2 (8.4.0 release)
  • Formatting only