Re: Static Forensic Analysis in Japanese (and other Languages)

From: Matt Doughty (mdoughtyat_private)
Date: Sun Mar 31 2002 - 19:51:54 PST

  • Next message: Tobias Diedrich: "Re: Static Forensic Analysis in Japanese (and other Languages)"

    Ok, I have little experience with forensics itself so this is just comming
    from the japanese language perspective. It is definitely possible to do
    greps on the files from a *nix environment. I am on a netbsd box right now,
    and I have the japanese enabled grep. So there is no reason you can't search
    through the data with the words you are looking for.  I would think the
    biggest issue you will face is what is the encoding format. There are 4 
    possible encodings (JIS, SJIS, EUC, unicode). If you were dealing with
    software that can't handle japanese input at all you could probably use
    the equivelent escape codes in the searches.  I believe that win2k does
    most of its encoding in unicode internally so I wouldn't give up on the 
    possibility of entering the search terms into EnCase directly as I imagine
    that will be more a function of the locales and IME than EnCase itself.
    
    I know you can do the searching in *nix environment. It might make it 
    easier to install a japanese distro (Vine, Redhat, Turbolinux) so that
    you don't have to figure out the locale settings and installing japanese 
    enabled utils. If you are an emacs user you might consider using mule.
    
    That said you can probably use EnCase on a win2k box with proper locales,
    and IME (win2k+multilingual or win2k Japanese). Either way it shouldn't
    be as much of a problem as you think.
    
    I sort of rambled here because I can't seem to focus on what is, atleast
    for me, a very wide topic. If you have specific questions just ask.
    
    --Matt
    On Fri, Mar 29, 2002 at 09:28:26PM -0500, Doug.Barbinat_private wrote:
    > I've got an interesting issue that I'm tackling with that I thought I'd
    > throw out to the group for discussion.  I'm going to Japan to perform
    > forensic imaging and analysis of several laptop PC's.  I'm assuming that
    > aside from power conversion and a few other idiosyncrasies, the imaging
    > piece will not be a problem.  A few more details, these machines will be
    > Windows 2000 laptops, most likely imaged using EnCase or dd.  I'll have the
    > ability to run either EnCase or FTK Forensic Suites against it the images as
    > well as all of the freely available command line tools.  Linux is a
    > possibility as well.  
    > 
    > The interesting piece comes into the analysis portion.  Of interest will be
    > e-mail, files, and deleted space.  I was wondering if anyone had any
    > experience performing key word (or grep) searches and other types of
    > analytics in Kanji (Japanese) or another language that does not use
    > English-like characters.  I do not think you can type Japanese terms into
    > EnCase.  I'm also guessing FTK's DTSearch Indexing function will not allow
    > me to index in Kanji.  Command line tools, I imagine will depend on the
    > interface.    
    > 
    > Some ideas so far . . . feel free to add:
    > - The e-mail will be in .pst files.  Therefore, I should be able to mount it
    > in a Japanese configured PC, with Outlook so that a Japanese person can read
    > through the e-mails.  FTK may also be able to parse the e-mail assuming the
    > character sets are installed on the analysis PC.
    > - I could use a Win32 port of grep on a Japanese configured PC.
    > - Ontrack PowerDesk has a halfway decent search utility I could run on a
    > Japanese PC.
    > - I could use a Japanese PC to convert the sought after words to Hex and
    > then run those searches in EnCase.
    > 
    > Any other ideas/experiences?  Thanks.
    > 
    > -DB
    > 
    > Douglas W. Barbin, CISSP, CFE
    >   Principal Consultant
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