Threat of the month: DRM Rootkits

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What is it? DRM stands for Digital Rights Management, describing any number of methods that content providers enlist to try to exercise control over what you can do with a digital document. Recently Sony BMG released a CD protected by a “rootkit,” a tool often used by hackers/malware authors to hide their tracks on a system.

How does it work? When the user loads the audio CD into a computer and agrees to the software license, the rootkit installs itself deeply into the operating system, intercepting low-level system calls in order to block certain applications from running, as well as to hide the DRM software's ...

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