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

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Date:	Sun, 17 Aug 2008 17:17:05 -0400
From:	David Collier-Brown <davecb@....com>
To:	Peter Dolding <oiaohm@...il.com>
Cc:	david@...g.hm, rmeijer@...all.nl,
	Alan Cox <alan@...rguk.ukuu.org.uk>, capibara@...all.nl,
	Eric Paris <eparis@...hat.com>, Theodore Tso <tytso@....edu>,
	Rik van Riel <riel@...hat.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,
	Pavel Machek <pavel@...e.cz>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [malware-list] [RFC 0/5] [TALPA] Intro to alinuxinterfaceforon
 access scanning

Peter Dolding wrote:
> Currently if we have a unknown infection on a  windows partition that
> is been shared by linux the scanner on Linux cannot see that the
> windows permissions has been screwed with.   OS with badly damaged
> permissions is a sign of 1 of three things.  ...

It's more likely that the files will reside on Linux/Unix under
Samba, and so the permissions that Samba implements will be the ones
that the virus is trying to mess up.  These are implemented in
terms of the usual permission bits, plus extended attributes/ACLs.
Linux systems mounting Windows filesystems are somewhat unusual (;-))

--dave
-- 
David Collier-Brown            | Always do right. This will gratify
Sun Microsystems, Toronto      | some people and astonish the rest
davecb@....com                 |                      -- Mark Twain
cell: (647) 833-9377, bridge: (877) 385-4099 code: 506 9191#
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