OpenDNS is a free service that has being running for the past three years. It provides free secruity and network services that makes the internet safer as well as faster. It does this through integrated web content filtering, and DNS.
On the OpenDNS blog David stated that:
The latest variant of Conficker is now churning through 50,000 domains per day in an attempt to thwart blocking attempts. Consider this: at any given time we have filters that hold well over 1,000,000 domains (when you combine our phishing and domain tagging filters). 50,000 domains a day isn’t going to rock the boat.
OpenDNS will continue to identify the domains, all 50,000, and block them from resolving for all OpenDNS users. This means even if the virus has penetrated machines on your network, its rendered useless because it cannot connect back to the botnet. If you want to disinfect your computer we recommend you check out the tools from our friends over at Kaspersky Lab.
So quick, switch over to OpenDNS, its real easy to set up, simply point the two DNS address to OpenDNS (208.67.222.222 and 208.67.220.220）, either on setting inyour computer, or set it up in your router, read the instruction from the link below. [Read the instructions here].