Install Fern Wifi Cracker On Ubuntu

[Bran Cardello]

Inthis article we will explore a pentesting tool called fern WiFi cracker. fern WiFi cracker is an easy to use GUI based WiFi hacker tool which anyone can use. There are no complicated terminal commands required to use this WiFi hacker tool. fern WiFi cracker comes preloaded with Kali Linux. You can also install this WiFi hacker tool in almost any Linux based distro.

fern WiFi Cracker is written in Python. It uses Python Qt GUI library. Program can crack and recover WEP/WPA/WPS keys and run other critical network based attacks on wireless or ethernet based networks as well.

A graphical interface for the tool will open up as shown below. Now first thing you need to do is select your network interface. As you select your network interface, it will enable monitor mode on the selected interface.

Now go ahead and hit browse button and look for password list file. In order to crack a WiFi password you need to have a password-list which you can use to brute-force the wireless network. You can easily get multiple password text-file on the internet.

So to create word list for our brute-force attack we will be using a program called crunch. crunch comes pre-installed in Kali. For any other distribution you can easily download it from the software repository.

We can shorten this process based on the acquired knowledge of the target. For instance if we somehow know that the target always uses number passwords between 6 and 8 characters? We could create a complete list of password possibilities meeting this criteria and save them to a file in our desired directory by running the following command.

You can generate much more complex word-lists in crunch to be used for this WiFi hacker tool depending upon your recon. But then it would require you to use large amount of processing power. Which will also increase the required time.

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