A survey from antivirus software maker Sophos on the most reported computer viruses placed Klez-H, a year-old piece of code, on top, accounting for almost 13 percent of customer reports to the company. The virus and its variants have been at or near the top of the list since February 2002, when they first started spreading. A variant of Lovgate-E and the Bugbear-A viruses were in the No. 2 and No. 3 slots respectively.
No. 10 on the list is newcomer Datemake-A. The virus is causing some consternation because it will cause a computer's modem to dial a premium-rate telephone line, the U.K.-based company said. That virus, which accounts for 1.6 percent of all reports to the company, was first detected in February. The top-ten viruses accounted for some 40 percent of all customer reports to the company.