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Excessive XP Packet Activity

One of my machines is registering an excessive amounts of packets being sent. I have a bunch of XP/2000 machines networked as I'm studying for 70-210. They all seem to work fine and can all communicate well. One machine, which is my main machine, I happened to check the other day and the packets sent read around 500 billion. I rebooted and it picked up where it left off. Right from a clean reboot it started reading about 500 billion packets sent. I left the machine over night and in the morning it read over one trillion packets sent. Rebooting bought it back to about 600 billion. I thought rebooting would pretty much set it back to near zero, as it does that on all other machines. To test, when I would go out to a web site and watch to packets sent and recieved, the sent packet would jump a couple of billion instead of 10 or 20 when I would just go to a site. The recieved packets seem normal; a couple of thousand. There's not much in the start up but Zone Alarm, Nortons, a pop-up stopper and some printer drivers. Even if I were to stop all the programs from starting I don't think that would effect the packets already sent. If I check processes running in task manager all that shows is Idle and Task Manager with normal percentages with the CPU usage around 0-7% . Activity light on machine doesn't indicate that it's churning out packets either. The nic is an integrated Intel Pro/100 on a Gigabyte MB. All machine connected through a Linksys router into a cable connection. Any and all help appreciated.
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dcpinger
Asked:
dcpinger
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1 Solution
 
Netman66Commented:
Scan for trojans.

Maybe use SpyBot or Ad-Aware.

Advise.

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GrindCrusherCommented:
Run a protocol analyzer such as ethereal (its free
http://www.ethereal.com/) to see what type of traffic, i.e. broadcasts due to a faulty NIC, etc

Check against trojans and spyware as Netman suggested

While traffic is being generated you can run a
Nestat -an from the command prompt and see where and if there is any connection being established.

Are you running anything like Kazaa or morphious ?

While in task manager compare what processes are running. Here is some links to get you familiar with those processes:

http://www.answersthatwork.com/Tasklist_pages/tasklist.htm 
http://www.blkviper.com/WIN2K/servicecfg.htm 
http://www.geocities.com/greyknight17/startup.htm 

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dcpingerAuthor Commented:
I run Norton's automatically and scan weekly and always comes up clean. Ran Ad-Aware and found a few basics like double-click, but removing them had no effect. I only run Kaaza on one of the other machines dedicated to downloading questionable stuff. Running netstat shows that all tcp ports are just listening which I believe means there is no activity. I downloaded ethereal but need a few free minutes to read over how it works. I beginning to feel grind crushers comment about it just being a faulty nic may be right.When the machine is on for just a few hours the packets sent will go 1.5-2.0 trillion. That seems impossible without taking a performance hit and the machine, otherwise, seem like it's running normally.
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dcpingerAuthor Commented:
Bad NIC! Swapped it and it works fine . Thanks for pointing me in the right direction.
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