ZK-MAT wrote:Sigh... another drift O/T, I have to respond though. Not wanting to enter a heated discussion IslandBoy, but here goes.
I am a long time Avast user, built this PC in 2006 and run P2Ps and iTunes. I've been into computers since the early 80's. The PC is old in the tooth now but runs FS9 sweet and FSX runs okayish on lower settings. Also play several games (mainly FPS and Il2) regularly on it. It's clean, well I'm happy that it is anyway and think I know a little bit about PCs.
It is one of 6 PC's, a mac, a laptop and 4 iPods, and an Xbox that we have at home that are all networked (mine, wife's and three teenage kids with two PCs used as servers here - one of those servers used to host for NZFF and Teamspeak over 3 years ago). You are welcome to call in and take a look at them but that's not the point of my question about legit mp3 files actually carring viruses.
Matt
Hey Matt
Well, let's not get into a heated discussion then - that profits no one!

The point I was making is that most people who use P2P and deal in stolen music are infected. If you are one of the rare ones who aren't, that's great. But in fairness, the others need to be appraised of the situation - most people are completely unaware of the risks - I think you'd be prepared to go with that, yes? The fact stands that of the 30+ PCs I've seen through my doors in the last 2-3 years that had a P2P prog and / or regular iPod synching with pirate music (which for 99% of people seems to be a given), all but 1 were infected to the gills. And to emphasize the point, I have 2 clients who refuse to stop using Limewire et al (as they prefer to steal their music, video, games - but not petrol - how weird is that...), and I see them every 6-9 months with EXACTLY the same problem - viruses out the wazoo. The funny thing is, they are "ok" with me spending 4 hours plus ($200) every 6-9 months getting their PCs up and running again, as they still think they are ahead of the game given all the stuff they steal in between. Just goes to show, some people's morals most certainly have a ready cash price...
In direct answer to your original question - there is no file type that I am aware of that is specifically "immune" to virus penetration / corruption. It could be that the MP3 or other music-type files, regardless of file extension, are actually bogus files, or they could be half real music and half virus. I have not tried using the infected music - my client just wants it gone! Next time I get one, I'll try opening the file and see what happens - I'm picking that it will play mostly normally, perhaps with a glitch here and there or an early finish to the song. Viruses must be able to "tag along" somehow, as a few of the cases I've come across involve people getting music ONLY from an iPod that was used as a carrier from a Limewire-based Mac. So the most likely way that the infection got on the PC - given the overall risk profile / usage patterns of those clients - was via iPod. And it makes sense: most viruses are written for the biggest target market: Windows. Therefore, the language of the viruses is not compatible with OSX or Linux, and therefore those OSes simply act as a carrier. And even in the unlikely event that a Mac or Linux user DID have an AV installed, I would be surprised if it could detect a virus written in "another language".
My question to you is "why are you P2P"? Is there a specific reason you don't want or feel you have to pay for that which you are downloading? I'm curious about the mindset...