Modification of Safari Settings via Defaults Commandedit

Identifies changes to the Safari configuration using the built-in defaults command. Adversaries may attempt to enable or disable certain Safari settings, such as enabling JavaScript from Apple Events to ease in the hijacking of the users browser.

Rule type: query

Rule indices:

  • auditbeat-*

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



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

Version: 104

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule queryedit

event.category:process and host.os.type:macos and event.type:start and and process.args:
    ( and write and not
      UniversalSearchEnabled or
      SuppressSearchSuggestions or
      WebKitTabToLinksPreferenceKey or
      ShowFullURLInSmartSearchField or