Localized Attack.

In the last months we have seen an increase of ransomware attacks. While the first ones we saw were posing as Microsoft to threaten the user because it had been detected a pirated version of Windows, and in case you didn’t pay the fine they would contact the local law enforcement agencies, the new ones are posing as the very same law enforcement agencies.

While we are use to see this kind of fake messages in English, in this case the attacks are localized, we have seen English, German, Spanish or Dutch language (among others), depending on the targeted country. All of the attacks are targeting some European country, so it looks like that all of them are related and the same cibercriminal gang could be behind them.
In December, 2011, researchers from the Microsoft Malware Protection Center identified 25,000 computers as being infected with ransomware between the months of July and November, each attack being especially designed to target the citizens of a certain country.
More here | Panda Labs
Malware Analysis here | Microsoft Malware Protection Center

Rogueware threats never falter, it happens to be more creative and persistent these days.