Since May second more than half a million instances of the Trojan have been detected on consumer PCs, according to McAfee.
The spread of the Downloader-UA.h Trojan is the most significant malware outbreak in the last three years.
The Trojan pops up ads onto contaminated PCs basically turning them all into an advertising medium for Spammers.
McAfee says malware authors loaded hundreds of modified MP3s and MPEGs onto Limewire, eDonkey and other file sharing networks. The files are all named differently, are in many languages, have different file sizes in order to make them appear like legitimate music or video files.
If one of these files is played it will trigger the download of an application named "PLAY_MP3.exe" that blasts tons of ads onto the now-infected Windows PCs.
McAfee ratings: "medium" risk.
No other malware has been rated this high since some time back in 2005!
Watch your backs! This one will no doubt get worse before it gets better!
Edit - Delete
Comments:Posted on 8 May 2008, 13:54 by Katelyn
This is massive malware
The IT sector is going crazy with this one! Based on current data that's 30% of PCs that HAVE virus protection on them! And worse the user has to click on a link to install the stuff! Stupid!