<A HREF="http://www.eweek.com/c/a/Security/Trojan-Infects-More-Than-500000-PCs/?kc=EWKNLNAV050908STR1">More than a half million computers have been infected</A> by a Trojan spreading through bogus MP3 files on popular peer-to-peer networks in the past several days, according to researchers at McAfee's Avert Labs.

McAfee first reported noticing a spike in the discovery of a Trojan known as Downloader-UA.h on May 6. The malware was added to the McAfee DAT files May 2.