Re: Kernel Rootkits

Lee Revell
2005-04-15T19:22:02Z

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.

Lee