This is where Stampado throws users another curveball. As long as the ransom is not paid, the malware will delete a random file from the computer every 6 hours. That means a total of 16 files could be gone forever, while the rest remains encrypted. Paying the Bitcoin fee seems to be the only course of action unless security researchers can decrypt this nasty piece of software.
http://themerkle.com/russian-roulette-ransomware-stampado-is-making-the-rounds/How do they know the country of origin of ransomware (in this case Russia), don't the criminals hide their location?