How does the method of fighting "bad" botnets with "good" botnets work? How effective is this as an enterprise...
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Security researchers generally view these as a bad idea, although there has been some exciting research from the University of Washington centered on a project called Phalanx (pdf). The idea is that any server requests would have to be processed through the "good" botnet, which is geographically dispersed. Because a large number of servers are implemented as intermediaries, it becomes difficult to overwhelm one specific network link.
Still, as I stated earlier, I believe that this is a bad idea, for two reasons. First, think about how hard it is to secure existing systems. Now, expand that by a few thousand systems directly accessible from the Internet. This scenario leads directly to my second fear: control. Imagine the public relations nightmare should your good botnet be taken over and used to DoS someone else's network.
I propose that instead of building counter-botnets, security professionals could better spend their time tracking the patch-installation success rate for the systems they currently have. Leave the bot-herding to the bad guys.
- Learn more about fast-flux botnets and the threats they pose.
- How risky is it to log into a botnet control channel? Learn about the possible security threats.
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