This thread's last reply is from December 12, 2018, 2:47 PM UTC. Software, malware, and removal-tool
advice below may be out of date — treat specific steps and download links with caution.
My pc got hacked and all files are ended with .puma and cannot be opened
There's an article on this type of Ransomware at ... https://www.bleepingcomputer.com/forums/t/687095/puma-and-indiacom-ransom-note/?hl=+puma ... who have a number of ransomware specialists on their staff.
It is believed to be a variation of the STOP Ransomware.
The following post in the topic ... https://www.bleepingcomputer.com/forums/t/687095/puma-and-indiacom-ransom-note/#entry4617971 ... suggests that Dr Web is able to decrypt some versions of STOP.
Hope this is of help to you.