WZZZ wrote:
Well, I'm not sure I'd rely completely on that. They are saying it blocks connection to the C&C, but what if you're already infected and already connected?
A blocked connection is a blocked connection, whether or not it previously was unblocked. It won't "undo" any damage done by or info passed to the C&C server prior to the block but it will stop anything new from getting through.
And what happens if you're already infected and, never connected to the Flashback mothership, but OpenDNS goes off and you revert to your ISPs servers?
There is that, plus somewhat similar considerations for things like deleting preference files during troubleshooting, making sure all your Network Locations are set to OpenDNS IP addresses if you use more than one location, & so on.
Because of all this, I use & recommend considering a multi-layer approach to malware protection, including using OpenDNS, A-V software, & above all keeping your software up-to-date. No one thing will protect you from everything but having more layers of protection gives you a better chance that one of them will.