How to determine what generates network traffic?


  1. expertvision
    Posts : 4
    Windows 7 x64
       New #1

    How to determine what generates network traffic?


    Lately I've been having some unusual network traffic. I've checked with Network Monitor 3.4 and the process name is either svchost or system or unknown.
    How can I find out what generates the traffic ? There were mainly TCP packets, but others too.

    I don't expect to solve the problem for me, just want some guides that you might know of, or tools to analyze network traffic, or some info on how to interpret Network Monitor frame details.

    edit: antivirus/firewall/.. is hopeless
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  3. Darryl Licht
    Posts : 1,939
    Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition
       New #2

    You could try a packet sniffer/analyzer such as WinPcap... but they arent easy to figure out initially!
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  4. expertvision
    Posts : 4
    Windows 7 x64
    Thread Starter
       New #3

    That's exactly what Microsoft Network Monitor does .. is a packet capture/sniffer (works even in promiscuous mode) but I still can't figure it out who generates the traffic. I mean the process associated with it is svchost, system or unknown. But how do I find out who send a request to svchost to connect to whichever IP ?
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  6. Darryl Licht
    Posts : 1,939
    Windows 7 Ultimate 64 bit Steve Ballmer Signature Edition
       New #4

    expertvision said:
    That's exactly what Microsoft Network Monitor does .. is a packet capture/sniffer (works even in promiscuous mode) but I still can't figure it out who generates the traffic. I mean the process associated with it is svchost, system or unknown. But how do I find out who send a request to svchost to connect to whichever IP ?
    I believe you will find WinPcap does a lot more than Net monitor! Or try WireSHark....
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