Turkish security bod Utku Sen has published what seems to be the first open source ransomware that anyone can download and spread. The ‘Hidden Tear’ ransomware, available at GitHub, is a working version of the malware the world has come to hate. It uses AES encryption to lock down files and could display a scare warning or ransom message to get users to pay. The Features of Hidden Tear are:

Hidden-Tear-Decrypter Hidden-Tear .gitignore README.md

Uses AES algorithm to encrypt files. Sends encryption key to a server. Encrypted files can be decrypt in decrypter program with encryption key. Creates a text file in Desktop with given message. Small file size (12 KB) Doesn’t detected to antivirus programs (15/08/2015) This Ransomware it is not so advanced like other threat like Cryptowall or Cryptolocker but it does his job, as educational purposes. You can check the demonstration video made by Utku Sen