XCry Ransomware encrypts all files on victim's machine with AES and ask ransom in BTC. Encrypted file names are appended with .xcry7684 extension.

Cossy or Grafimatriux Ransomware is a Russian ransomware that encrypts user files with RSA-2048 and demands a ransom in BTC worth 50 rubles.

Black Worm Ransomware encrypt user data with BTC and demand ranwom in BTC. Encrypted files have .bworm extension appended to them.

FORMA Ransomware is a HiddenTear derivative apparently target toward Polish population. It encrypts files using AES and demands ransom in BTC.

Katyusha Ransomware encrypts user data with AES, and then requires a 0.5 BTC ransom to return files. An extension is added to the encrypted files: .katyusha