Windows 7 - Verisign fails to take action against malicious sites.

A security researcher is accusing Verisign Inc. of not acting fast enough to take down several dozen sites that he says are known to be spewing malware.

The sites are all in the .com and .net domains and were registered by domain name registrars in Russia and Turkey said Andrew Fried, CEO of security consultancy Deteque and a former senior special agent with the U.S Department of the Treasury.

The sites first surfaced Monday, and have been pushing out a new Russian exploit kit called JustExploit that takes advantage of Java bugs to infect computers, Fried said.