Variant of Zeusbot/Spyeye Botnet uses p2p network model instead of simple C&C server system. Bots are now capable of downloading commands, configuration files, and executables from other bots. New variant uses P2P network architecture to make botnet much harder to take down, Symantec warns. Bots can also download additional malware from infected computers, antivirus firm says. Virus-free software is very popular in the cybercriminal world because it’s capable of stealing a variety of information, documents and login credentials.
Source: https://thehackernews.com/2012/02/variant-of-zeusbotspyeye-botnet-uses.html