Hundreds of thousands of infected PCs could be without Internet access beginning July 9, 2012, the day the FBI is planning to pull the plug on servers it seized that had been used to push ads to computers infected with a malware Trojan called DNSChanger. Systems infected with DNSChanger end up being redirected to the servers that were once under the control of the cybercriminals, but now belong to the FBI.
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Maximum PC | FBI: Computers Infected with DNSChanger Trojan Will Lose Internet Access in July