I could create software with a happy face logo that does all that it says it does. It could also open a port through your firewall and upload everything on your desktop file.
To find open ports on a computer, you can use netstat command line.
1.) To display all open ports, open DOS command, type netstat and press Enter.
2.) To find open ports on a computer, you can use netstat command line.
3.) To display all open ports, open DOS command, type netstat and press Enter.
4.) To list all listening ports, use netstat -an |find /i "listening" command.
5.) To see what ports your computer actually communicates with, use netstat -an |find /i "established"
To find specified open port, use find switch. For example, to find if the port 3389 is open or not, do netstat -an |find /i "3389".
You can use PULIST from the Windows Resource Kit to find which process is using a specified port. For example, pulist |find /i "4125" may display
Process PID User
mad.exe 4125 Chicagotech/blin
Or you can use tasklist to find PID.