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SubjectRe: Kernel Rootkits
On Fri, 2005-04-15 at 11:40 -0700, Daniel Souza wrote:
> A way to "protect" system calls is, after boot a trusted kernel image,
> take a MD5 of the syscalls functions implementations (the opcodes that
> are part of sys_read for example) and store it in a secure place.

That's the problem, once the kernel is compromised there's no such thing
as a secure place. Solving this problem requires things like "trusted
computing" aka hardware support.


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