In November 2011, The FBI charged seven individuals from Estonia who concocted a scheme to redirect internet traffic through their web sites to collect affiliation fees.

Through email attachments and web sites, these individuals infected an unknown amount of computers with a virus that changed the DNS settings of computers, rerouting them to a series of web sites that have since been disabled by the FBI during Operation Ghost Click.

Unfortunately the FBI will cease to operate their clean DSN servers on July 9th and computers that remain infected with the DNSchanger virus will no longer be able to access the internet.

To check whether your computer is infected, you can visit the Canadian DNS OK web site by July 8th. And if you are infected removal instructions are available from the DNS Changer Working Group.