http://www.theregist...alureon_advances/
Additional changes include a new antivirus feature that rids TDSS-infected machines of 20 rival malware titles, including ZeuS, Gbot, and Optima. It also blacklists the addresses of command and control servers used by these competing programs to prevent them from working properly.
:-/

The article also mentions it can act as a DHCP server. If it does that all the time it would make infected machines pretty easy to spot on a corporate network.