I know that slapper is kinda old, but when i was browsing through packetstorm i found its source, and it uses p2p network ( If you remember how was i thinking about creating p2p bnet, this is a nice example, although you have to give it another compromised PC IP, which could be automatized really easily )

Slapper source code


Slapper analysis by Symantec


If you know ANSI C (linux) then please, PM me, i think we can code something better tha tsln this ourselves (i dont like to mod other's work... )