Elastic Security Detection Rules

Persistence via Login or Logout Hook

Last updated 6 months ago on 2025-02-04
Created 5 years ago on 2020-12-07

About

Identifies use of the Defaults command to install a login or logoff hook in MacOS. An adversary may abuse this capability to establish persistence in an environment by inserting code to be executed at login or logout.
Tags
Domain: EndpointOS: macOSUse Case: Threat DetectionTactic: PersistenceData Source: Elastic DefendLanguage: eql
Severity
medium
Risk Score
47
MITRE ATT&CK™

Persistence (TA0003)(opens in a new tab or window)

↳ Boot or Logon Initialization Scripts (T1037)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-endpoint.events.process*
Related Integrations

endpoint(opens in a new tab or window)

Query
process where host.os.type == "macos" and event.type == "start" and
 process.name == "defaults" and process.args == "write" and process.args : ("LoginHook", "LogoutHook") and
 not process.args :
       (
         "Support/JAMF/ManagementFrameworkScripts/logouthook.sh",
         "Support/JAMF/ManagementFrameworkScripts/loginhook.sh",
         "/Library/Application Support/JAMF/ManagementFrameworkScripts/logouthook.sh",
         "/Library/Application Support/JAMF/ManagementFrameworkScripts/loginhook.sh"
       )

Install detection rules in Elastic Security

Detect Persistence via Login or Logout Hook in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).