Infected by some kind of Ransomware/Cryptolocker/Cryptowall?

Hello,

I am seeking your assistance.

I was somehow infected with a ransomware virus tonight. It seemingly only appeared after I ran malware bytes, which I'd decided to do because my system was running slowly.

Now, loads of my files are encrypted, including some really important things.

I think I have removed the virus (after having run malwarebytes, and I can't see any traces in the registry) but I'm not sure.

So, I would really like help with 3 things:

1) Identifying exactly what...

Infected by some kind of Ransomware/Cryptolocker/Cryptowall?