Cory Doctorow of Boing Boing writes:
This week's storm of Windows worms is compounded by the fact that rival botnet gangs have written worms that attack each other, targetting one-another's compromised zombies and converting them to part of their own botnets.
The first worm, dubbed Zotob, appeared on Sunday and appeared to have faded Monday. However, several Zotob offshoots and another new worm, Bozori, were subsequently unleashed. New versions of pre-existing threats Rbot, Sdbot, CodBot and IRCBot also began wriggling their way into computers. Systems at CNN, ABC and The New York Times were hit.
The Register (UK) calls it Worm War II.
ComptuerWorld says Computer virus writers at war.