Some Apple users experienced another big tech scare this weekend in the form of the so-called "iWorm" virus that reportedly affected more than 17,000 Macs worldwide (via Doctor Web), but just in time for Monday, most of the danger has passed. As MacRumors reports, Apple has already updated its Xprotect malware definitions to prevent it from being downloaded in the future.
The virus, known in full as Mac.BackDoor.iWorm, reportedly used searches for posts in a Reddit subreddit dedicated to server lists for the popular game Minecraft. Searching allowed the Reddit user responsible to gain the IP address of the person searching, as well as their Command and Control (CnC) network data.
Apple's Xprotect itself has been around since the introduction of Mac OS X Snow Leopard and has been built into every iteration of OS X since, and it serves as a simple but effective malware detection service. Viruses and related vulnerabilities aren't that common for Mac machines, as as a result there's only around 40 entries listed after all that time. But while the service doesn't see that many updates, Mac machines (running OS X Snow Leopard and newer updates) run a search for them every day.
Still worried that you might be affected? Developer Jacob Salmela created a handy guide for figuring out if Mac.BackDoor.iWorm got to you.