DON'T PAY RUSSIAN CRYAKL RANSOM - YOU WON'T GET YOUR FILES BACK
If you pay the typically demanded 3 btc (US$12,000) then they'll say "Pay full price 5 btc", US$20,000 and even if you pay that you still won't get your files back.
CL 1.3.1.0.id-@@@@@7491-11C2.randomname
Above is the latest version from Russian criminals which changes your file names and starts with the email to contact them.
Typically the email is from aol.com (eg email-magna_bellator@aol.com) or india.com (eg zaloha@india.com).
They will ask for 3 bitcoin today and 5 tomorrow.
What do you think happens when you pay 5 bitcoins ..... the price goes up again.
I encourage you to contact the FBI to track them down and your state Senator in the US and put pressure on AOL to stop assisting these criminals.