wep network cracking

Automating Wireless Network Cracking :

In this recipe we will use Gerix to automate a wireless network attack. Gerix is an automated GUI for AirCrack. Gerix comes installed by default on Kali Linux and will speed up your wireless network cracking efforts.

Getting ready

A supported wireless card configured for packet injection will be required to complete this recipe. In the case of a wireless card, packet injection involves sending a packet, or injecting it, onto an already established connection between two parties.

How to do it...

Let's begin the process of performing an automated wireless network crack with Gerix by downloading it.

1.    Using wget, navigate to the following website to download Gerix.

wget https://bitbucket.org/Skin36/gerix-wifi-cracker-pyqt4/downloads/
gerix-wifi-cracker-master.rar

2.    Once the file has been downloaded, we now need to extract the data from the RAR file.

unrar x gerix-wifi-cracker-master.rar

3.    Now, to keep things consistent, let's move the Gerix folder to the /usr/share directory with the other penetration testing tools.

mv gerix-wifi-cracker-master /usr/share/gerix-wifi-cracker

4.    Let's navigate to the directory where Gerix is located.

cd /usr/share/gerix-wifi-cracker

5.    To begin using Gerix, we issue the following command:

python gerix.py

6.    Click on the Configuration tab.

7.    On the Configuration tab, select your wireless interface.

8.    Click on the Enable/Disable Monitor Mode button.

9.    Once Monitor mode has been enabled successfully, under Select Target Network, click on the Rescan Networks button.

10.  The list of targeted networks will begin to fill. Select a wireless network to target. In this case, we select a WEP encrypted network.

11.  Click on the WEP 

12.  Under Functionalities, click on the Start Sniffing and Logging button.

13.  Click on the subtab WEP Attacks (No Client).

14.  Click on the Start false access point authentication on victim button.

15.  Click on the Start the ChopChop attack button.

16.  In the terminal window that opens, answer Y to the Use this packet question.

17.  Once completed, copy the .cap file generated.

18.  Click on the Create the ARP packet to be injected on the victim access point button.

19.  Click on the Inject the created packet on victim access point button.

20.  In the terminal window that opens, answer Y to the Use this packet question.

21.  Once you have gathered approximately 20,000 packets, click on the Cracking tab.

22.  Click on the Aircrack-ng – Decrypt WEP Password button.

That's it!