I am helping a friend of mine who's machine has been infected with GANDCRAB V5.1. Ransome payment is $1200 USD which is rediculous.
Are the any decryption tool to decrypt file?
It was not working because 5.1 tool was made available weeks later. The thing is that currently there is a 5.2 version where not tools available.
There is a working tool for 5.1: