Antivirus Vendor Ranks Downloader.GK Trojan As Worst Of 2004

The Downloader.GK Trojan was responsible for 14% of all attacks on computer systems spotted by antivirus software maker Panda Software in 2004--more than double the attacks of any other virus this year.

The Downloader.GK Trojan infects Web surfers who unknowingly visit Web sites that were maliciously designed to spread it. Users are enticed to install a specific ActiveX application, which secretly installs spyware and adware on their systems.