Re: [Full-disclosure] Secure Delete for Windows

[greybrimstone@xxxxxxx]

Talk about this product off the list, its a waste of inbox space.

-----Original Message-----
From: GroundZero Security <fd@xxxxxxx>
To: Michael Holstein <michael.holstein@xxxxxxxxxxx>
Cc: full-disclosure@xxxxxxxxxxxxxxxxx
Sent: Tue, 17 Jan 2006 22:12:38 +0100
Subject: Re: [Full-disclosure] Secure Delete for Windows

  Our software works for NTFS and FAT filesystems and in the new 
version you can
also
wipe the free space to get rid of data that is left on unallocated 
portions of
the disk.

It was tested against encase which is one of the most popular recovery 
tools.
(apparently has been used to recover data from disks that have been 
recovered
from
the WTC incident although we can not confirm that)

We could not recover any data in our lab tests. We tested 7 different 
recovery
tools,
but encase is the most popular and we dont want to advertise for the 
rest too :)

Our application has not only the DOD wiping standard, but also peter 
gutmanns
algorythm
with 38 random overwrites, which is the most secure wiping methode we 
know of.
shred is ok but not good enough to really securely clean data.

----- Original Message -----
From: "Michael Holstein" <michael.holstein@xxxxxxxxxxx>
To: <full-disclosure@xxxxxxxxxxxxxxxxx>
Sent: Tuesday, January 17, 2006 9:50 PM
Subject: Re: [Full-disclosure] Secure Delete for Windows


> > An exe?  No source???  Just "setup.exe"????  Are you crazy?
>
> Or .. get GNU coreutils for windows :
>
> http://gnuwin32.sourceforge.net/packages/coreutils.htm
>
> and just use 'shred'.
>
> (although 'man shred' specifically makes note about journaled
> filesystems -- which NTFS is. I have not forensically analyzed the
> effectiveness of this tool on a specific file -- only on a block 
device).
> SysInternals also offers a freebie tool called 'sdelete'. Source for
> that is also available :
>
> http://www.sysinternals.com/Utilities/SDelete.html
>
> (and in the discussion about 'how sdelete works' they reference the 
same
> problem regarding journeled filesystems).
>
> If the emminently wise gent from GroundZero wishes to comment on how 
his
> perticular product addresses these issues, then that might be fodder 
for
> the list (versus the ongoing flames).
>
> Regards,
>
> Michael Holstein CISSP GCIA
> Cleveland State University
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