Hi... Sorry you have been 'hit' !
But, nowadays, we all get hit, right !?

First, try

UNLOCKER 1.8.7 BY CEDRICK 'NITCH' COLLOMB

It's free and safe.

After that, and assuming you are successful (or for sure if you are not successful), you should download and run regularly, or at least when the need arises...

Malwarebytes.org

(Be sure to follow the install instructions...
You MUST download and save the install file to your Desktop - Normally not a good habit, but necessary with Malwarebytes.
A Re-Boot is also really important to do BEFORE you run the program.)

Malwarebytes is also free, but there is also a 'Pro' version that Protects as well as Removes... It's cheap and you have to be nuts to not buy it.
btw, Malwarebytes does NOT interfere with any other 'protection' software you may already have installed.

Tell your friends about this stuff, OK ?