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Security

Hiding a Rootkit In System Management Mode 119 119

Sniper223 notes a PC World article on a new kind of rootkit recently developed by researchers, which will be demoed at Black Hat in August. The rootkit runs in System Management Mode, a longtime feature of x86 architecture that allows for code to run in a locked part of memory. It is said to be harder to detect, potentially, than VM-based rootkits. The article notes that the technique is unlikely to lead to widespread expoitation: "Being divorced from the operating system makes the SMM rootkit stealthy, but it also means that hackers have to write this driver code expressly for the system they are attacking."

Experiments must be reproducible; they should all fail in the same way.

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