Have heard that kind of hacking software before, which encrypted all files on my computer, and when my brother have been using the computer (or course carelessly), it is hacked and they demand a 1.2BTC ransom... These are just one more bad news of BTC, and even make my family members have even worse image on bitcoin... And we decided not to pay the coins to the hacker as all important files have been backed up.
Whay do you think?
If all the important files have been backed up, don't pay those assholes.
This will only encourage them to do this more.
I'd recommend you to upload a single file online and create a new thread here, so that people can help you decrypt them.
Just a tip
@Cryptoheadd