Before anything.. make a copy of the disk and lock the original away
with a chain of evidence. Use Ghost or DD. Work only on a copy.
Examine the disk using something like Knoppix STD or Audit or other
bootable CD.
swap file..
history files for IE
Alternative Browser history files
use a undelete tool to see what might be recovered for cookies etc
check for firewall logs or proxy server logs
If he is really that clever, look for alternative data streams and
hidden files..
Look for a hidden partition
Some history and last URLs can be found in the registry
I'm sure other will toss in their 3 cents too :)
MikeS
____________________________________
mikesweeney@packetattack.com
www.packetattack.com
Home of "Network Security using Linux"
Office 714.637.4235
On Aug 29, 2005, at 8:45 PM, Edmond Chow 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
