From bitdefender.com
According to local media reports, Russian courts and government agencies have been hit by a previously-undocumented strain of data-wiping malware known as CryWiper.
The malware was first discovered in August, when hundreds of PCs belonging to Russia’s Supreme Court, Ministry of Justice, as well as other courts across the country were infected with what was originally believed to be ransomware.
Like conventional ransomware, CryWiper displays a ransom message demanding payment for recovery of data that it had encrypted. In its case, CryWiper demanded a Bitcoin ransom be paid by victims.