Adversaries may modify plist files to automatically run an application when a user logs in. When a user logs out or restarts via the macOS Graphical User Interface (GUI), a prompt is provided to the user with a checkbox to "Reopen windows when logging back in".(Citation: Re-Open windows on Mac) When selected, all applications currently open are added to a property list file named <code>com.apple.loginwindow.[UUID].plist</code> within the <code>~/Library/Preferences/ByHost</code> directory.(Citation: Methods of Mac Malware Persistence)(Citation: Wardle Persistence Chapter) Applications listed in this file are automatically reopened upon the user’s next logon.
Adversaries can establish Persistence by adding a malicious application path to the <code>com.apple.loginwindow.[UUID].plist</code> file to execute payloads when a user logs in.
View in MITRE ATT&CK®| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| attribute.integrity.variety.Modify configuration | Modified configuration or services | related-to | T1547.007 | Boot or Logon Autostart Execution: Re-opened Applications |