A new command-and-control Trojan for OS X appears to be associated with the Syrian Electronic Army.
OS X does not provide a way to monitor XProtect updates, but you can set up a custom script to do so.
New XProtect definitions identify Yontoo as "OSX.AdPlugin.i" and block all but the latest versions of Java.
Apple has updated its Web plug-in blacklist to include all but the most recent versions of Java.
A new variant of the Flashback malware has been found, though current malware definitions should detect it.
Apple has updated its XProtect malware scanner to contend with the second revision of the Flashback malware, though this update comes after a bit of a delay.
The latest malware threat for OS X is a minor and obscure Trojan horse of which new versions have been found recently.
Apple has a rudimentary malware scanner called XProtect, which it has updated to address recent malware threats.
If you would like to test Apple's XProtect system, you can now safely do so with the latest definitions update.
Readers ask about how to fix a flashing incoming network connection request, Trash that won't empty, and more.