CryptoWall ransomware is back with new version after two months of silence

Attackers have started distributing a new and improved version of the CryptoWall file-encrypting ransomware program over the past few days, security researchers warn.

The new version, dubbed CryptoWall 3.0, uses localization and passes traffic to a site where users can pay for their decryption keys through two anonymity networks—Tor and I2P (the Invisible Internet Project).

CryptoWall is a sophisticated ransomware program that encrypts the victims’ files with a strong cryptographic algorithm. Users are asked to pay the equivalent of US$500 in bitcoin virtual currency in order to receive the decryption key that allows them to recover their files.

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