On Mar 31, 2007, at 11:16 PM, william(at)elan.net wrote:
But DNS here is just a tool, bad guys could easily build quite complex system of control by using active HTTP such as XML-RPC, they are just not that sophisticated (yet) or maybe they don't need anything but simple list of pointers.
Actually, the discussion isn't about the use of the DNS protocol itself as a botnet C&C channel (as you indicate, that's certainly doable), but rather about domains used as pointers to malware which is then distributed via various methods, same for phishing, as well as the use of DNS to provide server agility for botnet controllers irrespective of the actual protocol used for C&C. ----------------------------------------------------------------------- Roland Dobbins <rdobbins@cisco.com> // 408.527.6376 voice Words that come from a machine have no soul. -- Duong Van Ngo