Elastic Security Detection Rules

Keychain CommandLine Interaction via Unsigned or Untrusted Process

Last updated 23 days ago on 2025-04-21
Created 5 years ago on 2020-08-14

About

Adversaries may collect the keychain storage data from a system to acquire credentials. Keychains are the built-in way for macOS to keep track of users' passwords and credentials for many services and features such as WiFi passwords, websites, secure notes and certificates.
Tags
Domain: EndpointOS: macOSUse Case: Threat DetectionTactic: Credential AccessData Source: Elastic DefendLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Credential Access (TA0006)(opens in a new tab or window)

↳ Credentials from Password Stores (T1555)(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 in ("start", "process_started") and event.action == "exec" and
  process.args like ("/Users/*/Library/Keychains/*", "/Library/Keychains/*", "login.keychain-db", "login.keychain") and 
  ((process.code_signature.trusted == false or process.code_signature.exists == false) or 
   (process.name in ("bash", "sh", "zsh", "osascript", "cat", "echo", "cp") and 
   (process.parent.code_signature.trusted == false or process.parent.code_signature.exists == false)))

Install detection rules in Elastic Security

Detect Keychain CommandLine Interaction via Unsigned or Untrusted Process 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).