Congratulations Mac fanboys! You're now thought to be just as gullible as Windows fanboys!
The Jahlav-C Mac-specific Trojan poses as an ActiveX update needed to watch grumble [porn - ed] flicks, as explained by ParetoLogic here. The same booby-trapped website, which runs code to detect whether surfers are using Mac or Windows PCs, is a equal opportunity infector that also deploys code designs to infect Windows PCs using similar social-engineering trickery.
In addition to the Trojan, Sophos discovered a new strain of the Mac OS X-specific Tored worm on Thursday.
"You need a plugin/codec/ActiveX Control to watch this" is never never never anything other than a come on from The Bad Guys. Never.
The only exception to this is if you've built your own Linux kernel - in which case, you don't need me for your security news.
Remember, "free download" is Internet-speak for "open your mouth and close your eyes".