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Date:      Mon, 6 Aug 2001 19:11:20 +0000 (UTC)
From:      naddy@mips.inka.de (Christian Weisgerber)
To:        freebsd-security@freebsd.org
Subject:   Re: Tracing writes?
Message-ID:  <9kmq4o$185l$1@kemoauc.mips.inka.de>
References:  <9km9fr$1sb$1@kemoauc.mips.inka.de> <20010806124632.G2134@futuresouth.com>

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Matthew D. Fuller <fullermd@futuresouth.com> wrote:

> > You see that a file is written to.  How do you figure out where the
> > write() is coming from?
> 
> There may not be a write().

True, but if there is, how to find it?

> There was at some time in the past a bug in the VM system that would
> cause mtimes to be updated because of (from memory) dirtied pages in the
> in-core copy of an executable being flushed back.

Yes, I suspect something like this.  But for the purposes of -security:
What ways are there to identify a rogue process writing to some file it
isn't supposed to touch?

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de


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