Apple has released an update to XProtect for Sequoia only

Early today Apple released an update to XProtect for macOS Sequoia only bringing it to version 5286. As usual, Apple doesn’t release information about what security issues this update might add or change. Macs running earlier versions of macOS should still be using version 5285.

This version removes the rule for MACOS.1afcb8b, and adds three new rules for MACOS.FROSTYFERRET.UI, MULTI.FROSTYFERRET.CMDCODES and MACOS.FRIENDLYFERRET.SECD. It seems the animal of the week is a ferret.

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

This update is now available for Sequoia only via iCloud. If you want to check that manually, use the Terminal command
sudo xprotect check
then entering your admin password. If that returns version 5286 but your Mac still has an older version installed, you can force the update using
sudo xprotect update
Currently, this new version isn’t available via Software Update, softwareupdate, or in SilentKnight, and is only available via iCloud connections to Macs running Sequoia.