linux-kernel - Re: [malware-list] [RFC 0/5] [TALPA] Intro to alinuxinterfaceforon access scanning

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Message-ID: <20080819104124.GA29788@elf.ucw.cz>
Date:	Tue, 19 Aug 2008 12:41:24 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	Rik van Riel <riel@...hat.com>
Cc:	david@...g.hm, Eric Paris <eparis@...hat.com>,
	Theodore Tso <tytso@....edu>, davecb@....com,
	linux-security-module@...r.kernel.org,
	Adrian Bunk <bunk@...nel.org>,
	Mihai Don??u <mdontu@...defender.com>,
	linux-kernel@...r.kernel.org, malware-list@...ts.printk.net,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [malware-list] [RFC 0/5] [TALPA] Intro to alinuxinterfaceforon
	access scanning

On Sun 2008-08-17 20:07:39, Rik van Riel wrote:
> On Mon, 18 Aug 2008 00:58:44 +0200
> Pavel Machek <pavel@...e.cz> wrote:
> 
> > Rather than modify all the applications using mmap (you can't tell if
> > the other side is going to use it for shared memory... right?), we
> > could simply modify all the Windows-facing applications using mmap.
> 
> If web browsers, office suites and mail clients on Windows
> have certain kinds of vulnerabilities, it is safe to assume
> that the same programs on Linux will have similar problems.
> 
> Can we please get rid of the idea that "Windows facing" is
> where the whole malware problem is?
> 
> As for how to solve it - lets try to come up with a solution
> that is reasonably high performance and can be used for more
> than just malware scanning.  

Don't mix exploits with viruses -- they are different.

Exploit is where application does something very unexpected due to a
bug.

Virus is where machine works correctly, but user does something
stupid.

For exploits, randomization + patching + compartments seem like a
solution. We should be working on "how to confine openoffice.org so
that it can't do much damage" instead of "how to detect .doc documents
that makes openoffice.org do something unexpected".

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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