How to identify an IP or web address when computer is having network traffic without an opened web browser?

Question by olmedofr: How to identify an IP or web address when computer is having network traffic without an opened web browser?
I just found out there is an Internet LAN traffic activity watching the connection icon on a XP taskbar. I want to determine if it is a worm or virus sending information, and the IP address is connecting to. Somebody knows an application to monitor this type of activity?
Thanks

Best answer:

Answer by janne5011
try this
http://www.karenware.com/powertools/ptlanmon.asp

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