linux-kernel - Re: Versioning file system

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Message-ID: <20070704173234.GB26201@gateway.home>
Date:	Wed, 4 Jul 2007 19:32:34 +0200
From:	Erik Mouw <mouw@...linux.org>
To:	Theodore Tso <tytso@....edu>, alan <alan@...eserver.org>,
	J?rn Engel <joern@...fs.org>, "H. Peter Anvin" <hpa@...or.com>,
	Jack Stone <jack@...keye.stone.uk.eu.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	akpm@...ux-foundation.org, viro@...iv.linux.org.uk
Subject: Re: Versioning file system

(sorry for the late reply, just got back from holiday)

On Mon, Jun 18, 2007 at 01:29:56PM -0400, Theodore Tso wrote:
> As I mentioned in my Linux.conf.au presentation a year and a half ago,
> the main use of Streams in Windows to date has been for system
> crackers to hide trojan horse code and rootkits so that system
> administrators couldn't find them.  :-)

The only valid use of Streams in Windows I've seen was a virus checker
that stored a hash of the file in a separate stream. Checking a file
was a matter of rehashing it and comparing against the hash stored in
the special hash data stream for that particular file.


Erik

-- 
They're all fools. Don't worry. Darwin may be slow, but he'll
eventually get them. -- Matthew Lammers in alt.sysadmin.recovery

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