In about 10 days, the FBI will carry out another stage of malware cleanup as noted below

DSNChanger Malware – FBI will take infected PCs offline on 07/09/2012
http://www.securitynewsdaily.com/2030-dnschanger-deadline.html

DNS-CHANGER MALWARE test site
(if you see RED your PC may be infected … GREEN indicates no infection is present)
http://dns-ok.us/

QUOTE: In 10 days, there’s a chance you will not be able to access the Internet on your personal computer. No email, no Facebook, no Google, no Twitter — nothing.  This potentially dire situation is due to the nasty DNSChanger Trojan, and the fateful date of July 9, on which the FBI is set to take all computers still infected with the malware offline for good. 

Launched by Estonian cybercriminals, the DNSChanger malware infected Windows PCs, Macs and routers across the world and enabled the crooks to hijack victims’ Web traffic and reroute it to rigged sites. After the FBI, in “Operation Ghost Click,” busted the criminals last November, the FBI set up surrogate servers to keep the computers infected with the Trojan temporarily online so users could clean them.

But on July 9, those surrogate servers are coming down.  In his Krebs on Security blog, researcher Brian Krebs cites a statistic from the DNSChanger Working Group, which estimates that more than 300,000 computers are still infected with the malware.