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On March 9th, 2012 at 12:01am the FBI finally pulled the plug on a set of rogue DNS servers used by the trojan known as DNSChanger How FBI DNS Changer Shutdown Might Break Your Internet and What To Do About It How FBI DNS Changer Shutdown Might Break Your Internet and What To Do About It FBI actions mean 350,000 computers - all infected with the "DNSchanger" malware - will be cut off from the Internet on July 9, 2012. Does this sound like science fiction at best or a scam... Read More , potentially leaving hundreds of thousands without access to the Internet.

The malware has kept itself in the headlines because it changes the DNS settings of infected computers. Once changed, those computers have their traffic routed through servers set up by the hackers who developed the trojan.

FBI agents have long since caught up with the hackers responsible and captured the servers used to route traffic. But this presented the FBI with a problem – it could not shut down the servers because the infected PCs would suddenly lose Internet access.

An awareness campaign was launched to let users known of the potential threat. It included a site created by the DNS Changer Working Group that could inform visitors if their computer was infected. This has reduced the number of infected computers to around 250,000. Now, however, the servers are finally down for good – so those victims who remain infected are in the dark.

If you, or a friend, have suddenly experienced an unexplained Internet outage on one of your PCs there is a decent chance that DNSChanger is responsible. To remove it, visit the DCWG fix page on a computer that still has Internet access and download one of the many malware removal tools listed.


After you’ve removed the bug, check our coverage of the best free anti-virus programs The 10 Best Free Anti-Virus Programs The 10 Best Free Anti-Virus Programs You must know by now: you need antivirus protection. Macs, Windows and Linux PCs all need it. You really have no excuse. So grab one of these ten and start protecting your computer! Read More and download one to keep your computer protected.

Source: CNET, DNS Changer Working Group

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