BKA has been circulating since the start of this year. It blocks victims’ computers and claims to have identified illegal content on them. It then claims that the block will only be removed after the victim has paid a fine. Microsoft’s Malware Protection Center reports that modified trojans such as this are also a problem in several other countries, but that the ransomware claims to be from a different authority, depending on the user’s location. The criminals select the appropriate language version of the malware based on the victim’s IP address.”]
Source: http://www.h-online.com/security/news/item/Localised-ransomware-identified-by-Microsoft-1398912.html