These are the kinds of things you need to expect when you start sharing files with people and you don't know/aren't sure of the files you are downloading. If I EVER use something like Kazaa (any p2p application involved with file sharing) I scan EVERY file that I get with a trojan scanner, A/V scanner, bot scanner, etc. There are too many hazard's these days with downloading files off of Kazaa for people not to have a heads up.

Like I said, my advice is to scan your downloaded files and to be careful of the extensions of the files you download. Also, if the file size is WAAAYY off from what your sure it should be, it probably isn't what it is supposed to be. Great head's up reboot, people definitely need to be aware of these things.