Email PDF Attachments to Control Stealthy Backdoor

Turla, a highly sophisticated Russian cyberespionage group, also known as Snake and Uroburos, for the past several years have been using PDFs in emails to control an especially stealthy Microsoft Outlook backdoor. The most recent victims of the backdoor include Germany’s Federal Foreign Office, a significant defense contractor, and the foreign offices of at least two other European countries. In the attack against the Germany’s Federal Foreign Office, Turla dropped the backdoor on several systems and used them to steal data. Continue reading Email PDF Attachments to Control Stealthy Backdoor