...World's Largest Botnet crown (maybe) (9 April 2008) Most spam comes from just six botnets (29 February 2008) Rivalmalware gangs wage turf war (1 July 2007) Spammers get bullish on stocks (15 January 2007) Whitepapers The Register...
http://www.theregister.co.uk/2008/11/26/srizbi_returns_from_dead/