Apple has overnight released its regular weekly update to XProtect, bringing it to version 5358, for all versions of macOS. As usual it doesn’t release information about what security issues this update might address.

This version adds six new Yara rules for the longstanding Dubrobber family and the recent ShadyShoelace, in MACOS.DUBROBBER.SAINDY, MACOS.DUBROBBER.CHREIM, MACOS.SHADYSHOELACE.OSLOSTA, MACOS.SHADYSHOELACE.OSLODL, MACOS.SHADYSHOELACE.LODLSYDEAR and MACOS.SHADYSHOELACE.LODLSYDEX8. In the Osascript rules in XPScripts.yr it adds two new rules for MACOS.ANGRYORB.JXPL and MACOS.OSASCRIPT.DUEXKE, amends the rule for MACOS.OSASCRIPT.SYPR again, and removes the rule for MACOS.OSASCRIPT.ANMA.

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 Golden Gate 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_15-5358

Sequoia, Tahoe and Golden Gate systems only

This update has already been released for Sequoia and later via iCloud. If you want to check it manually, use the Terminal command
sudo xprotect check
then enter your admin password (this still results in an error in macOS 27, though). If that returns version 5358 but your Mac still reports an older version is installed, you should be able to force the update using
sudo xprotect update
which should work fine for Golden Gate as well.