SystemKey Access via Command Line

Keychains are the built-in way for macOS to keep track of users' passwords and credentials for many services and features, including Wi-Fi and website passwords, secure notes, certificates, and Kerberos. Adversaries may collect the keychain storage data from a system to acquire credentials.

Rule type: query

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: high

Risk score: 73

Runs every: 5m

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

Maximum alerts per execution: 100

References:

https://github.com/AlessandroZ/LaZagne/blob/master/Mac/lazagne/softwares/system/chainbreaker.py

Tags:

Elastic
Host
macOS
Threat Detection
Credential Access

Version: 2

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

edit

event.category:process and event.type:(start or process_started) and
  process.args:("/private/var/db/SystemKey" or "/var/db/SystemKey")

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
Technique:
- Name: Credentials from Password Stores
- ID: T1555
- Reference URL: https://attack.mitre.org/techniques/T1555/
Sub-technique:
- Name: Keychain
- ID: T1555.001
- Reference URL: https://attack.mitre.org/techniques/T1555/001/

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