Troj/Ransom-A is one of only a few viruses so far that has asked for a ransom in exchange for releasing control of a computer. The new Trojan falls into a class of viruses described as “ransomware” The schemes had been seen in Russia, but the first one appeared in English just last month. Its unclear how the Trojan is being spread, although Sophos is investigating, Cluley said. If the method of unlocking the computer doesnt work after the money is sent, the virus writer offers tech support.”]
Source: https://www.csoonline.com/article/2120638/trojan-freezes-computer–requests-ransom.html