Open source Release Takes Linux Rootkits Mainstream

LinuxSecurity.com: The art of burying invisible malware deep inside a Linux machine is about to go mainstream, thanks to a new open-source rootkit released Thursday by Immunity Inc., a firm that supplies tools for penetration testers. When implemented, Immunity's DR, or Debug Register, makes backdoors and other types of malware extremely difficult to detect or eradicate. It's notable because it cloaks itself by burrowing deep inside a server's processor and availing itself of debugging mechanisms available in Intel's chip architecture. The rootkit, in other words, mimics a kernel debugger. Rootkits are a treat that every computer user should think about. This article discusses one type of Linux rootkit which tries to mimics a kernel debugger.

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