Apple has released an update to XProtect for all macOS

Overnight, Apple has released its regular weekly update to XProtect, bringing it to version 5338. As usual it doesn’t release information about what security issues this update might address.

This version adds four new Yara rules for MACOS.BONZAIBREEZE, MACOS.BONZAIBUFFOON, MACOS.BONZAIBOOMER and BONZAIBUNNY, additions to the Bonzai family of what appear to be clickfix stealers. To accompany those are four new entries in the Osascript rules in XPScripts.yr, for MACOS.OSASCRIPT.BOPADO, MACOS.OSASCRIPT.BOSTA, MACOS.OSASCRIPT.BOMSPAA and MACOS.OSASCRIPT.BOMSPAB.

You can check whether this update has been installed by opening System Information via About This Mac, and selecting the Installations item under Software.

A full listing of security data file versions is given by SilentKnight and SystHist for El Capitan to Tahoe available from their product page. If your Mac hasn’t yet installed this update, you can force it using SilentKnight or at the command line.

If you want to install this as a named update in SilentKnight, its label is XProtectPlistConfigData_10_15-5338

Sequoia and Tahoe systems only

This update hasn’t yet been released for Sequoia and Tahoe via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password. If that returns version 5338 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update