Security experts at ESET discovered and analyzed the first Android File-Encrypting ransomware dubbed Simplocker with C&C hosted on TOR. The malware is capable of encrypting the users files, but data may be lost if the encryption key is not retrieved. The ransom message is written in Russian and its translation looks like: WARNING your phone is locked! The device is locked for viewing and distribution child pornography, zoophilia and other perversions. To unlock you need to pay 260 UAH. In case of no PAYMENT YOU WILL LOSE ALL DATA on your device!”]
Source: http://securityaffairs.co/wordpress/25504/malware/simplocker-first-android-ransomware.html