DOS from certain ip's
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  1. #1
    Only african to own a PC! Cider's Avatar
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    DOS from certain ip's

    Denial of service attack Firewall protection 08/17/08 23:38:31 Blocked Source IP address: 196.207.32.69
    Denial of service attack Firewall protection 08/17/08 23:38:26 Blocked Source IP address: 196.207.32.83




    Hi there




    A client of mine keeps getting this DOS attack from the above two ip's.

    How do I find out more? I can ping both and run traceroutes. How do I find out more from where it is comming and what app is doing this?

    Thanks in advance.
    The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.
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  2. #2
    Just Another Geek
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    What are the source and destination ports?
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  3. #3
    Only african to own a PC! Cider's Avatar
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    Hey there SD

    I dont know exactly what the ports are. This was a log generated by the AV software.

    I can pm you the full report if you wish. Where do I find out what the source port is and destination port?
    The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.
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  4. #4
    Just Another Geek
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    It should be in that report. If it's not in there then it's utterly useless. Which, unfortunately, is quite common with this type of "security" software
    Oliver's Law:
    Experience is something you don't get until just after you need it.

  5. #5
    Only african to own a PC! Cider's Avatar
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    Ok well it doesnt show you.

    If it did , what would that tell us, the app?
    The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.
    Albert Einstein

  6. #6
    Only african to own a PC! Cider's Avatar
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    Hey SD. I jsut looked at our corporate products and see that they show the source and target port.

    Um whihc security suite can tell you this, I would like this as my personal one so I can see exactly.
    The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it.
    Albert Einstein

  7. #7
    Just Another Geek
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    I have no idea, I don't use any virusscanner and/or firewall on my windows machines..

    But, since it seems it always comes from these 2 ip addresses, you could setup Wireshark. Just capture only the traffic to/from these hosts.

    A filter like "(host 1.2.3.4 or host 4.3.2.1)" should do the trick.
    Last edited by SirDice; August 18th, 2008 at 04:23 PM.
    Oliver's Law:
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  8. #8
    Some Assembly Required ShagDevil's Avatar
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    If it did , what would that tell us, the app
    Knowing the source and destination ports can help isolate what service and/or application is being targeted or used. In many instances (not all), an application/service will use specific ports to communicate.
    The object of war is not to die for your country but to make the other bastard die for his - George Patton

  9. #9
    Super Moderator: GMT Zone nihil's Avatar
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    The ZoneAlarm free personal firewall gives that information. Is there a different log in your product? like maybe only available interactively?
    If you cannot do someone any good: don't do them any harm....
    As long as you did this to one of these, the least of my little ones............you did it unto Me.
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