http://www.tomsguide.com/us/microsoft-n ... 19087.html
Microsoft took down two malware networks yesterday morning (June 30) by seizing control of almost two dozen domain names for websites from which the malware was being distributed and controlled. Sounds like good news, right? Well, Microsoft's sneak attack also took down more than 4 million legitimate websites that were using the same domain name system (DNS) service as the malware networks.
"The shutdown has affected in some form at least 25 percent of the APT groups we are tracking," Raiu wrote on the SecureList blog, concluding that, "We think yesterday’s events have dealt a major blow to many cybercriminal and APT operations around the world."