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Re: [malware-list] TALPA - a threat model? well sorta.

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From: <douglas.leeder@...>
To: Helge Hafting <helge.hafting@...>
Cc: <linux-kernel@...>, <malware-list@...>
Subject: Re: [malware-list] TALPA - a threat model? well sorta.
Date: Monday, August 18, 2008 - 6:25 am

Helge Hafting <helge.hafting@aitel.hist.no> wrote on 2008-08-18 11:09:25:


immediately, so
home
some

It might be useful to scan in advance, on mount, or scanner start. But 
that
can be simulated using a user-space program, and kernel-based on-open 
blocking scans:
Just have a background program open the files, and they will be scanned 
and 
cached.
The background program could also do clever things like check if running 
on battery, check
load level, keep hot-lists of files to scan/scan first.

All of which can be implemented on top of the Talpa interface already 
specified.

In practice scan on-open with blocking is fast enough for general usage, 
even using our existing 
hacky kernel module approach.

-- 
Douglas Leeder

Sophos Plc, The Pentagon, Abingdon Science Park, Abingdon,
OX14 3YP, United Kingdom.

Company Reg No 2096520. VAT Reg No GB 348 3873 20.

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Messages in current thread:
TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 12:36 pm)
Re: TALPA - a threat model? well sorta., 7v5w7go9ub0o, (Wed Aug 13, 8:14 pm)
Re: TALPA - a threat model? well sorta., 7v5w7go9ub0o, (Wed Aug 13, 10:25 pm)
Re: TALPA - a threat model? well sorta., Andi Kleen, (Wed Aug 13, 2:17 pm)
Re: TALPA - a threat model? well sorta., Mihai , (Wed Aug 13, 8:18 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Thu Aug 14, 7:58 am)
Re: [malware-list] TALPA - a threat model? well sorta., Mihai , (Thu Aug 14, 8:34 am)
Re: TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 2:40 pm)
Re: TALPA - a threat model? well sorta., H. Peter Anvin, (Wed Aug 13, 2:21 pm)
Re: TALPA - a threat model? well sorta., Arjan van de Ven, (Wed Aug 13, 2:24 pm)
Re: TALPA - a threat model? well sorta., Arjan van de Ven, (Wed Aug 13, 1:39 pm)
Re: TALPA - a threat model? well sorta., Pavel Machek, (Fri Aug 15, 12:06 pm)
Re: TALPA - a threat model? well sorta., , (Mon Aug 18, 8:21 am)
Re: TALPA - a threat model? well sorta., Pavel Machek, (Mon Aug 18, 9:30 am)
Re: TALPA - a threat model? well sorta., , (Mon Aug 18, 8:03 pm)
Re: TALPA - a threat model? well sorta., , (Thu Aug 14, 9:31 pm)
Re: TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 2:57 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Thu Aug 14, 5:46 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Thu Aug 14, 9:37 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Arjan van de Ven, (Thu Aug 14, 9:46 am)
Re: TALPA - a threat model? well sorta., Arjan van de Ven, (Wed Aug 13, 5:39 pm)
Re: TALPA - a threat model? well sorta., Eric Paris, (Thu Aug 14, 10:12 am)
Re: TALPA - a threat model? well sorta., Helge Hafting, (Fri Aug 15, 6:07 am)
Re: TALPA - a threat model? well sorta., , (Fri Aug 15, 6:44 am)
Re: TALPA - a threat model? well sorta., Peter Zijlstra, (Fri Aug 15, 6:37 am)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Fri Aug 15, 9:10 am)
Re: [malware-list] TALPA - a threat model? well sorta., Helge Hafting, (Mon Aug 18, 6:02 am)
RE: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 12:25 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Fri Aug 15, 12:30 pm)
RE: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 1:33 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Fri Aug 15, 1:40 pm)
RE: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 1:47 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Fri Aug 15, 2:17 pm)
RE: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 4:08 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 2:06 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Fri Aug 15, 4:17 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 4:05 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 9:18 am)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Fri Aug 15, 1:04 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Fri Aug 15, 2:09 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Helge Hafting, (Mon Aug 18, 6:09 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Mon Aug 18, 6:25 am)
Re: [malware-list] TALPA - a threat model? well sorta., Peter Zijlstra, (Mon Aug 18, 6:14 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Mon Aug 18, 6:24 am)
Re: TALPA - a threat model? well sorta., Arjan van de Ven, (Thu Aug 14, 11:57 am)
Re: TALPA - a threat model? well sorta., Theodore Tso, (Wed Aug 13, 2:15 pm)
Re: TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 3:02 pm)
Re: TALPA - a threat model? well sorta., Theodore Tso, (Wed Aug 13, 3:29 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Thu Aug 14, 5:30 am)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 9:24 am)
Re: [malware-list] TALPA - a threat model? well sorta., Eric Paris, (Thu Aug 14, 9:48 am)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 11:50 am)
Re: [malware-list] TALPA - a threat model? well sorta., Pavel Machek, (Fri Aug 15, 10:37 am)
Re: [malware-list] TALPA - a threat model? well sorta., Eric Paris, (Thu Aug 14, 1:29 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 3:17 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Christoph Hellwig, (Thu Aug 14, 3:34 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 3:41 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Thu Aug 14, 9:44 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 10:04 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Alan Cox, (Fri Aug 15, 4:51 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 12:48 am)
Re: [malware-list] TALPA - a threat model? well sorta., Arjan van de Ven, (Thu Aug 14, 11:41 pm)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 1:05 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 1:36 am)
Re: [malware-list] TALPA - a threat model? well sorta., Johannes Weiner, (Fri Aug 15, 1:12 am)
Re: [malware-list] TALPA - a threat model? well sorta., , (Fri Aug 15, 1:28 am)
Re: [malware-list] TALPA - a threat model? well sorta., Christoph Hellwig, (Thu Aug 14, 4:20 pm)
Re: [malware-list] TALPA - a threat model? well sorta., J. Bruce Fields, (Thu Aug 14, 5:21 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Theodore Tso, (Thu Aug 14, 7:34 pm)
Re: [malware-list] TALPA - a threat model? well sorta., J. Bruce Fields, (Tue Aug 19, 5:43 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Eric Paris, (Thu Aug 14, 3:20 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Thu Aug 14, 8:03 am)
RE: [malware-list] TALPA - a threat model? well sorta., , (Thu Aug 14, 8:27 am)
Re: [malware-list] TALPA - a threat model? well sorta., Pavel Machek, (Fri Aug 15, 10:31 am)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Wed Aug 13, 5:15 pm)
Re: TALPA - a threat model? well sorta., Arjan van de Ven, (Wed Aug 13, 2:21 pm)
Re: TALPA - a threat model? well sorta., , (Thu Aug 14, 5:18 am)
Re: TALPA - a threat model? well sorta., Greg KH, (Wed Aug 13, 12:57 pm)
Re: TALPA - a threat model? well sorta., Alan Cox, (Wed Aug 13, 12:24 pm)
Re: TALPA - a threat model? well sorta., Arnd Bergmann, (Thu Aug 14, 9:00 am)
Re: TALPA - a threat model? well sorta., Christoph Hellwig, (Wed Aug 13, 1:07 pm)
Re: TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 12:47 pm)
Re: TALPA - a threat model? well sorta., Alan Cox, (Wed Aug 13, 12:37 pm)
Re: TALPA - a threat model? well sorta., Eric Paris, (Wed Aug 13, 1:00 pm)
Re: TALPA - a threat model? well sorta., Alan Cox, (Wed Aug 13, 3:59 pm)
RE: [malware-list] TALPA - a threat model? well sorta., Press, Jonathan, (Wed Aug 13, 5:24 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Rik van Riel, (Wed Aug 13, 5:35 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Jan Harkes, (Fri Aug 15, 4:16 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Arjan van de Ven, (Fri Aug 15, 6:05 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Eric Paris, (Sun Aug 17, 7:19 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Alan Cox, (Mon Aug 18, 11:33 am)
Re: [malware-list] TALPA - a threat model? well sorta., Rik van Riel, (Mon Aug 18, 12:43 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Arjan van de Ven, (Sun Aug 17, 7:26 pm)
Re: [malware-list] TALPA - a threat model? well sorta., David Collier-Brown, (Sun Aug 17, 5:11 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Alan Cox, (Wed Aug 13, 5:23 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Eric Paris, (Thu Aug 14, 11:25 pm)
Re: [malware-list] TALPA - a threat model? well sorta., Alan Cox, (Wed Aug 13, 5:13 pm)