Re: Using dd.exe to make forensic images of NTFS drives

From: Bill Schoolcraft (billat_private)
Date: Mon Aug 11 2003 - 13:00:49 PDT

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    At Sun, 10 Aug 2003 it looks like Jim Zajkowski composed:
    
    > On Saturday, August 9, 2003, at 1:04 PM, Sakaba wrote:
    > 
    > > I have tried time and time again to make images of my NTFS drives via 
    > > the
    > > dd command in windows.
    > 
    > Why do that?  I use a FreeBSD "fixit" cd, which has a live FreeBSD 
    > system on the disc.  Once there, I use dd and pipe it into ssh and send 
    > it over an ssh pipe to my analysis machine.  Works like a charm.
    > 
    > I do this:
    > 
    >    # ifconfig xl0 inet some.ip.add.ress netmask net.mask.goes.here
    >    # route add -net 0 the.gateway.add.ress
    >    # cd /dev; /dist/dev/MAKEDEV std
    
    Hi Jim, I didn't get the reason for the "MAKEDEV std" on the
    above line.
    
    Thanks.
    
    >    # dd if=/dev/ad0s1 | dd obs=5m | dd obs=5m | gzip -6 | ssh my.machine 
    > "gzcat > image.dd"
    > 
    > The three dd's on that line set up a buffer stream that allows the 
    > reading dd to not have to stop for network traffic so often.  Otherwise 
    > you get a lot of read... pause... read... pause... and that makes it 
    > take 2 or 3 times longer.  I'm also gzipping since it's not a local 
    > wire to my analysis machine.
    > 
    
    Great email to archive for reference. :)
    
    -- 
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    Bill Schoolcraft            
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