The Federal Bureau of Investigation (FBI) is to shut down internet access to thousands of computers around the world which have been infected with the DNSChanger trojan.

The Federal Bureau of Investigation (FBI) is to shut down internet access to thousands of computers around the world which have been infected with the DNSChanger trojan.

 
A whopping 350,000 computer users may lose their internet connection on Monday 9 July as the FBI takes extreme action to deal with the threat posed by this malware. 85,000 of the infected computers are in the United States, while 20,000 are in the UK.
 
The trojan, which has been in the wild for five years, infects DNS servers and let Estonian cybercriminals redirect internet traffic to websites with adverts on them, from which they gained millions of dollars of profit.
 
 
The FBI obtained a court order in March to allow the Internet Systems Consortium to deploy and maintain temporary clean DNS servers in order to give users time to repair their infected computers, but the substantial cost involved in keeping such systems in place meant it was only a matter of time before the plug would be pulled and infected computers become isolated from the internet.
 
There is a simple fix for the trojan, however, and those concerned about potentially losing their internet connections have been advised to use the free DNS Check web tool from McAfee to scan for and remove the malware.
 
Unfortunately it is unlikely that all those affected by the trojan will remove it in time, leaving many users without access to the web, emails, social networks, and other internet services.