RE: Computer forensics to uncover illegal internet use

["dave kleiman" <dave () isecureu com>]

Connie,

Actually, if any "illegal" items are discovered, at least in the US, you
must stop and contact Law Enforcement immediately.
Forget making anything stick, you would be in possession of contraband, no
different than finding a bag of drugs on the ground, you pick it up you are
in possession of it.  The felony is on you...

Dave


> -----Original Message-----
> From: Sadler, Connie [mailto:Connie_Sadler () Brown edu]
> Sent: Tuesday, August 30, 2005 12:24
> To: James Leighe; security-basics () securityfocus com
> Subject: RE: Computer forensics to uncover illegal internet use
>
>
> I think the individual below referred to "illegal porn" -
> which is an entirely different matter. Now you're talking
> about serious criminal activity, and if this is suspected,
> you're better off getting Law Enforcement involved early. If
> you don't, and you end up not handling the "evidence" in a
> matter consistent with "chain of custody", etc., you could
> let a criminal "off the hook". If this user is accessing
> child porn, law enforcement and legal folks must be involved
> to make anything you do really "stick".
>
> Connie
>
> -----Original Message-----
> From: James Leighe [mailto:jamesleighe () gmail com]
> Sent: Tuesday, August 30, 2005 1:51 AM
> To: security-basics () securityfocus com
> Subject: Re: Computer forensics to uncover illegal internet use
>
> This sure is allot of trouble to bust someone for looking at
> porn however to each his own... You could use drive imaging
> software and then data recovery software to get all the files
> on the hard drive that have not been written over as of yet,
> like cookies and the tmp files n' all that noise... Other
> than that, advanced routers have logging capabilities, if you
> have an IDS that would be a place too look... you know your
> network better than we do, check around.
>
> Also, here is a list of some interesting registry and file
> locations, taken from a scanlog from adaware:
> --------------------------------------------------------------
> ----------
> --------------
>   MRU List Object Recognized!
>     Location:          : C:\Documents and Settings\****\recent
>     Description        : list of recently opened documents
>
>
>   MRU List Object Recognized!
>     Location:          :
> software\microsoft\direct3d\mostrecentapplication
>     Description        : most recent application to use microsoft
> direct3d
>
>
>   MRU List Object Recognized!
>     Location:          :
> software\microsoft\direct3d\mostrecentapplication
>     Description        : most recent application to use
> microsoft direct
> X
>
>
>   MRU List Object Recognized!
>     Location:          :
> software\microsoft\directdraw\mostrecentapplication
>     Description        : most recent application to use microsoft
> directdraw
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\mediapl
> ayer\medialibraryui
>     Description        : last selected node in the microsoft windows
> media player media library
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\mediapl
> ayer\preferences
>     Description        : last playlist index loaded in microsoft
> windows media player
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\mediapl
> ayer\preferences
>     Description        : last playlist loaded in microsoft
> windows media
> player
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\windows
> \currentversion\explorer\comdlg32\lastvisitedmru
>     Description        : list of recent programs opened
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\windows
> \currentversion\explorer\comdlg32\opensavemru
>     Description        : list of recently saved files, stored
> according to file extension
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\windows
> \currentversion\explorer\recentdocs
>     Description        : list of recent documents opened
>
>
>   MRU List Object Recognized!
>     Location:          :
> S-1-5-21-1417001333-725345543-1003229946-1003\software\microso
> ft\windows
> media\wmsdk\general
>     Description        : windows media sdk
> --------------------------------------------------------------
> ----------
> --------------
>
> On 26/08/05, Edmond Chow <echow () gettechnologies com> wrote:
> > Dear List,
> >
> > I'm working on the following project and would appreciate
> your views:
> > I have been tasked with finding out if a certain desktop
> computer was
> used
> > to view pornographic sites on the internet.  This user has gone to
> great
> > lengths to try to mask his illegal activities by erasing cookies,
> temp.
> > files and by installing anti-spyware software on his computer.  Are
> there
> > any tools that would allow me to still uncover proof that he had
> accessed
> > these sites?  So far, the tech department is telling me that he did
> access
> > illegal sites on only two dates but I suspect that this illegal
> activity
> > started many months or years ago and it will be up to me to
> find more
> proof.
> > Also, at a network level, we know his IP address but yet my
> technical
> > support department is telling me that they cannot (either
> because they
> don't
> > want to or because they are not technically capable of)
> tell me what
> > internet sites this IP address has accessed in the past.  Logically,
> there
> > must be a point in the network (on some piece of hardware)
> where I can
> > consult log files to track his activities?  Or, is there a log file
> that I
> > can consult that will tell me what sites all my users have accessed
> and from
> > what IP address?
> >
> > In terms of access to the desktop in question, I will have
> full access
> as
> > the computer will be in my possession in the coming days.
> >
> > Thank-you and any help that you can provide would be most
> appreciated.
> > Regards,
> >
> >
> > Edmond