How do you know which Windows programs are linked to Internet with your acceptance or not? Some programs can reveal several of your information directly, while others can not reveal your information.
This is especially true for applications που εκτός από μια νομότυπη πρόσοψη διαθέτουν και κρυμμένα κακόβουλα χαρακτηριστικά. Αν θέλετε να μάθετε αν ένα program communicates via the internet with the development company or somewhere else, you can do it in the following ways.
Your security options are to set one up software or hardware firewall to only allow connections from programs you have selected.
But let's see how you can see your current status of your connections, with or without third-party tools.
netstat with cmd.exe
One of the easiest ways is to use the netstat command. How;
Look for cmd.exe on your computer.
Right-click on cmd.exe and select Run as Administrator. This will open a command line window.
Type netstat -bona and press enter. It will display all connections and listening ports
What do the parameters mean?
- b - displays the executable involved in creating the connection.
- o - shows what the process ID belongs to.
- n - displays the address and port number.
- a - shows all connections and listening ports.
The command displays executable files, local and external IP addresses, and ports in a list. So you can see which programs are connecting or "listening" to you.
Powershell
You can also use Powershell as it offers many interesting choices.
Search for Powershell on your PC.
Right-click on exe and select Run as Administrator. A Powershell window will open.
Enter $ nets = NetStat
This will save the Netstat output to the $ nets variable.
Enter $ nets | select-string “Established” to display only existing links.
Use the same syntax to look for additional features, e.g. for who "listens" to you use listening.
Another useful command is the netsh ipv4 interface which shows tcpconnections.
Third party tools
A free program that is easy to use is Nirsoft CurrPorts. It is a portabled Windows application that will display all your active connections and listening ports. You can find the app from here.
