自动化接入 · API / MCP EN

技术说明 · T1147

Hidden Users

Every user account in macOS has a userID associated with it. When creating a user, you can specify the userID for that account. There is a property value in <code>/Library/Preferences/com.apple.loginwindow</code> called <code>Hide500Users</code> that prevents users with userIDs 500 and lower from appearing at the login screen. By using the Create Account technique with a userID under 500 and enabling this property (setting it to Yes), an adversary can hide their user accounts much more easily: <code>sudo dscl . -create /Users/username UniqueID 401</code> .

ATT&CK T1147 platforms — 状态 有效 版本 20.1

Every user account in macOS has a userID associated with it. When creating a user, you can specify the userID for that account. There is a property value in <code>/Library/Preferences/com.apple.loginwindow</code> called <code>Hide500Users</code> that prevents users with userIDs 500 and lower from appearing at the login screen. By using the Create Account technique with a userID under 500 and enabling this property (setting it to Yes), an adversary can hide their user accounts much more easily: <code>sudo dscl . -create /Users/username UniqueID 401</code> 1.

  1. Cybereason OSX Pirrit

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