Microsofts main Web site last week showed no ill effects from the scheduled denial-of-service attack generated by computers infected by the MyDoom.B virus.
Machines infected by the less common of the two MyDoom viruses were programmed to begin flooding Microsofts site with HTTP GET requests and to continue doing so through March 1. But according to an analysis of the virus by Network Associates McAfee Security unit, the virus contains a flaw in its code that prevents the attack from beginning 93 percent of the time.
MyDoom.B, like its older sibling, the far more widespread MyDoom.A, also launches attacks on the site of Unix vendor SCO Group. MyDoom.A began its attack on SCO last week, completely crippling the site. In response, the company has moved its Web presence to another URL until the attack subsides.