I recently came across a new strain of malware called Win 7 Security 2012. I treated it with the standard scan from Malwarebytes anti mallware. It seemed to clean it out, but now all of the applications on the computer will not open. The user gets a pop up saying asking what they want to open the application in. I was helping someone remotely so working on it physically will have to wait until they come into the office on Monday morning. However if there is a solution to resolve the problem with the applications, I’d be grateful. I think it’s a registry issue, but I’m not sure where in the windows registry.

Download fixncr.reg from the following website, and double click it, it will restore the exe associations.http://www.bleepingcomputer.com/virus-re…
at the same time start machine and tap the F8 key repeatedly until the option windows appears choose safemode with networking then open browser and go to safety.live.com(that is microsoft’s online virus scanner) it’s is free…then go to malwarebytes.org and download and run their anti-malware scanner it’s free…if you know the name of the virus manual removal instructions can be found at precisesecurity.com or bleepingcomputer.com…you can download a rescue disk from kaspersky.com or avira.com just use another computer set YOUR bios to boot from the cd/dvd and run the rescue disk before anything can boot up they are both free…
Follow the steps in this guide, and all will be good…http://www.bleepingcomputer.com/virus-re…
you windows explorer is infected. You need another copy of windows explorer to replace it by dos mode.