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Re: [Qemu-devel] building a virus-proof PC with Qemu

From: Andreu Escudero
Subject: Re: [Qemu-devel] building a virus-proof PC with Qemu
Date: Tue, 23 Nov 2004 13:46:36 +0100

Seems absurd to me...
Haw will you now if a byte comes from a "trusted source"?
And if you know what is a trusted source and what is not... you don't
need anything like extrange imformation propagation...

On Tue, 23 Nov 2004 13:31:59 +0100, Piotras <address@hidden> wrote:
> Hi!
> Imagine that with every byte stored on disk image, the emulated
> memory and CPU registers we associate a flag indicating if the
> byte come from "trusted" source. This information would propagate
> with every memory/disk access (data-flow tracking).
> Before Qemu would translate a block of code the trusted bits could
> be checked to see if the code is "trusted". Of course there are
> issues with dynamic loaders, dynamic compilers, etc. And it's not
> going to work well with scripted code.
> Possible usage:
>   * building virus-proof PC,
>   * automate hunting for worms/exploits on Internet.
> Opinions?
> Piotrek
> _______________________________________________
> Qemu-devel mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/qemu-devel

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