August Was Worst Virus Month Ever For Viruses And WormsAugust Was Worst Virus Month Ever For Viruses And Worms

August 2003 was the worst month in history for computer viruses, antivirus company Central Command Inc. said Tuesday as it disclosed the month's top viruses and worms.

Not surprisingly, the Sobig.F worm topped the company's "Dirty Dozen" list, accounting for 76.8% of confirmed infections. Adding to Sobig.F's standout nature was the sheer number of E-mails the worm generated. At the height of its spread, Sobig was responsible for 73% of all E-mail traffic, Central Command said.

Persistent, earlier versions of Sobig also showed on the chart, but they were responsible for only 1.5% of confirmed infections.

The Blaster worm (LovSan.A) came in second, tallying 6.4% of confirmed infections.