An anonymous reader writes: A new malware family called ProxyBack infects PCs and transforms them into a Web proxy. ProxyBack malware works by infecting a PC, establishing a connection with a proxy server controlled by the attackers, from where it receives instructions, and later the traffic it needs to route to actual Web servers. Each machine infected with ProxyBack works as a bot inside a larger network controlled by the attackers, who send commands and update instructions via simple HTTP requests. Some of the people infected with this malware, mysteriously found their IP listed on the buyproxy.ru Web proxy service.A technical write-up of the infection steps and various malware commands is available on the Palo Alto Networks blog.
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