netstat -a //shows all connections netstat -v //all connections and the process id (or executable name)
netstat -an //all connections without reverse DNS lookup, just ip's
tasklist //shows all executables and their process id and RAM usage
use something like maxmind geo ip lookup demo to find out the country of the ip - if you have connections to .ru or .cn (aka russia & china) and you're not browsing russian/chinese websites, be aware!