There are many types of ransomware, but the most common are FBI Ukash MonkeyPak Ransomware, called Reveton, it has been infecting machines from around the world. This is where Trend Micro AntiRansomware Tool comes in handy, it can remove all different types of ransomware from your computer, its free to use and I show you how in this virus removal guide.
How to use Trend Micro AntiRansomware Tool
https://esupport.trendmicro.com/solution/en-US/1097042.aspx
Download AntiRansomware Tool
https://esupport.trendmicro.com/media/13077275/AR20_build9.exe