RE: maybe a simple problem

From: Jeff Peterson (jpetersonat_private)
Date: Fri Oct 04 2002 - 10:08:02 PDT

  • Next message: Hugo van der Kooij: "RE: maybe a simple problem"

    A good plan of action to detect if the person is being hacked might be this:
    
    1.  Insert a simple hub, (not a switch), between his pc and the usual
    network connection.
    
    2.  Attach another PC to this hub, and collect packets using Ethereal.
    (http://www.ethereal.com/).  The hub will allow the sniffer to inspect all
    packets to and from his machine.
    
    3.  Run a capture at all times that his machine is running.
    
    4.  Run a capture for an extended period of time when he is _away_ from his
    machine, but when it is turned on.  Sudden bursts of activity during this
    time would be of great interest.
    
    5.  Get a severe coffee buzz, and analyze the captures for suspicious
    activity.  If he is being hacked, you will probably notice some kind of
    pattern, such as a 3rd IP address suddenly being active when he starts up
    his e-mail, or something.  
    
    6.  Investigate the unusual IP addresses with a mindset that it is innocent,
    and try to prove so.  Do not assume that any activity is malicious, until
    you cannot prove otherwise.
    
    7.  Save all captures in the event that there is evil-doing.
    
    My $0.02
    
    Jeff Peterson
    Berkeley Technika, Inc.
    
    -----Original Message-----
    From: Andrew Fison [mailto:afison@brit-tex.net]
    Sent: Wednesday, October 02, 2002 2:37 AM
    To: incidentsat_private
    Subject: maybe a simple problem
    
    
    I have a client who believes that thier win98 pc has been hacked with some
    remote control software. They are pretty vague and not close buy so i cannot
    look at the machine all the time. I asked them to do netstat when they think
    they are being spied on but as yet they have not given me anything useful.
    
    I think there is reason to believe them as the owner is involed in a hostile
    boardroom take over of his company by some other entities, whilst this is
    legal, they have used other underhand methods against my customer before and
    they are trying to force him to sign over the business to them a little too
    swiftly.
    
    this all started when his wife was suing the pc, and a telescop came on the
    screen and then disapeared, since then the machine crashes, documents
    pertaing to the business have  gone missing etc, any clues to what this
    telescope could be?
    
    yours
    
    andrew
    
    
    
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