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Showing posts from September 2, 2010
Fortinet's August Report shows Return of Ransomware
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Fortinet has announced its August 2010 Threat Landscape report, which showed ransomware variant TotalSecurity with its biggest comeback since March. Ransomware is a malware that locks out applications and data from a user's PC and then demands ransom for restored access. "One indicator we observed this month was that the Ransomware application had gone server-side polymorphic, which means that the loader will connect to a single server and request a single file, but the code changes on an hourly basis in order to avoid detection,†said Derek Manky, Project Manager, Cyber Security and Threat Research, Fortinet. "This is a technique typically seen with botnets, such as Waledac, and has been picked up by the developers of TotalSecurity. This is another example of how relying purely on antivirus is not a silver-bullet approach to protecting systems from infection." In addition to ransomware, another highly detected infection this month is Zeus/ZBot, a do-it-yourself bo