Attacker

Attacker is a lightweight Windows application designed to work as a TCP/UDP port listener. It is able to play audio notifications upon new connections.
The program does not offer protection against malicious attacks from hackers but it provides only notifications of attempted connections.

Portable running mode

The portable status of this utility allows you to run it by simply opening the executable file (there’s no installation setup included in its deployment).
It does not store entries in the Windows registry and leave traces on the host computer, so you may uninstall it by simply deleting the files that you have grabbed from the Internet. Dropping it on portable media devices is also possible.

Simple looks

Attacker delivers a plain feature lineup hiding only a few configuration settings under its hood. A help manual is included in the package and provides short descriptions about the tool’s monitoring capabilities.

How it functions

The application offers you the option to set up a list of TCP and UDP ports you want the program to listen to. In addition, you may start or stop the process using simple clicks.
When the program detects a TCP connection request or receives a UDP message, it logs the information directly in the main window and reveals the IP addresses. Plus, you can copy data to the clipboard and clear the information displayed in the main window.

Configuration settings

You can appeal to several tweaks in order to run the utility at Windows startup, automatically start listening when the program begins, and play a custom audio file (WAV file format), which can be tested right in the configuration panel, as well as flash the icon in the system tray upon new connections.

Bottom line

To sum things up, Attacker delivers a straightforward software solution for receiving instant notifications upon new TCP/UDP connections.