McAfee: Beware Trojan adware in 'MP3s'
Hundreds of thousands of McAfee users have recently reported fake MP3 files containing adware.
It seems that adware pushers have found a new way to trick you into downloading their annoying products: fake MP3 files.

Yesterday, security vendor McAfee reported that it's seen a huge spike in fake MP3 files spreading on peer-to-peer networks. Although the files have names that make them look like audio recordings, they're really Trojan horse programs that try to install a shoddy media player and adware on your computer, said Craig Schmugar, a researcher with McAfee.