Cryptowall 4 – The Evolution Continues

By Talos Group This post is authored by Andrea Allievi and Holger Unterbrink with contributions from Warren Mercer . Executive Summary Over the past year, Talos has devoted a significant amount of time to better understanding how ransomware operates, its relation to other malware, and its economic impact. This research has proven valuable for Talos and led the development of better detection methods within the products we support along with the disruption of adversarial operations . CryptoWall is one ransomware variant that has shown gradual evolution over the past year with […]

Source:: Cisco Security Notice