CryptoWall v4 Emerges Days After Cyber Threat Alliance Report

Less than a week after the publication of a thorough report by the Cyber Threat Alliance on the CryptoWall version 3 malware family, it appears that the actors behind the malware have updated the underlying code.

Beginning on October 30, 2015, Palo Alto Networks began seeing instances of this new version of CryptoWall, which some researchers have begun calling ...