NANO is another cryptographer, extorting user money. this virus is an updated version of RAPID ransomware. Cryptovirus encrypts almost all user data on the computer using the AES algorithm. Audio files, videos, archives, office documents and other files are at risk. The virus makes these files unusable by changing the extension to .NANO. After encrypting files, NANO creates a #RECOVERY_FILES#.txt text file containing information about the ransom.