Monitoring my system for hackers

Additionally, if you want to view all of the current connections to your computer, you can go to the start menu --> Run --> type "cmd" and click OK, and then type "netstat" and press enter.

This will show you a list of all current connections to your computer. If you see a connnection to an address that is suspicious, you can investigate it further. However, it does require that you are able to distinguish between wanted and unwanted connections - and this may require some research.

And finally, if you want to run a quick scan for spyware and viruses on your machine immediately, you can use Microsoft's free online safety scanner at http://onecare.live.com/site/en-us/default.htm, or Symantec's online security check at http://security.symantec.com/sscv6/default.asp?langid=ie&venid=sym.

These perform a once-over, and don't persist on your machine so they won't substitute for an installable scanner (such as a Microsoft OneCare subscription).

how can i investigate  suspicious conecctions, i ask just becouse ones when i did that thing with the  netstat i sow an a conecction with personal name and the name of the isp but defenetly i was not conected to anyting like that, i was sure that was not wanted connection

The easiest way to learn more about a connection is to determine what program is using that connection on your computer. You can do that by using:

netstat -b

This will print the program name. From there, you can either recognize the program and decide that it's okay, or decide that you have a virus/spyware that needs cleaned. For the latter, you can use one of the virus/spyware scanning websites above.

thanks