Monitoring the computer's network activity
Sometimes, for security purposes or to perform the diagnosis of high-traffic consumption it is useful to test which sites and ip-addresses the computer is connecting to in the secret from the user. This is not difficult to do by using standard system tools: command-line and utility netstat.
First you need to run a command line as administrator: type in the search menu "Start" cmd.exe, right click on the link and select "Run as administrator". Then in the window that opens, enter the command:
netstat -abf 5 > C:\list.txt
Where C:\list.txt is file path, to which the output will be sent to:
You just need to wait a few minutes, press Ctrl + C to exit the utility netstat and view the file "list.txt". It will provide you the information about what processes are connected to the internet for the chosen time period and at what addresses.
Information about unfamiliar processes or open the ports can always be found using the search engine Google.