First of all you  need to download backtrack5 R1 from it official website, backtrack5 R1 is available in different flavours so check your compatibility and download it. For this tutorial we are using a USB device to install backtrack5 r1.

Requirements:-

• USB (Flash Drive) (Minimum USB Drive capacity 4 GB)
• Backtrack 5 ISO file, md5sum verified.
• UNetbootin 

 Unetbootin is a program (tool) that is used to create bootable USB drive for majors Linux distro without any need of CD, it can be run on both Windows and Linux, so here is the procedure to burn your USB.

• Download UNetbootin, latest version (Linux, Windows, OSX)
• Plug in your USB Drive
• Format the USB drive to FAT32
• Start Unetbootin and select the "diskimage" option, choose a BackTrack 5 r1 ISO file.
• Select the amount of space to use for persistence in MB
• Select your USB drive and click “OK” for creating a bootable BackTrack USB drive.
• Once rebooted, remember that the default username and password are root / toor.

 

Now your USB is ready to install backtrack5 r1 on hard disk drive, there are many ways to use backtrack5 r1 or any Linux distro, you can run it on virtual environment and you can install it with other operating system means dual boot, but for this article we will install it on a hard disk with no other operating system.

• Boot the Backtrack Live Environment.
• At the bash prompt, type startx to enter the GUI.
• Double click the Install Backtrack.sh on the desktop
• Lets run through the installer step by step
• Select the language and click on the forward button.
• Select your geographical location and time zone than click on the forward button

• Choose your keyboard layout, or leave it on a default means USA
• Now the next window is to make partition select "Install them side by side, choosing between them each startup" than click forward

• On the next window confirm the setting for your hard disk.
• Than check all the install component and click on install.
• when the installation reaches at 99% it takes some time so do not worry about it.

• After Finished Press the restart button.
• On the next boot your computer will ask you to choose a operating system

• Do not forget the default username root and password toor, and do not forget to change them.
• Now you are able to run backtrack5 R1 with windows XP, windows 7 and Windows Vista.

Hi friends today I am going to tell you how to hack wifi wpa security. I am using the backtrack5 operating system to hack wifi. In my recent recent posts I told you how to install backtrack5 r1operating system in dual boot that is in conjuction with windows OS. In bt5 there is an application gerix wifi cracker-ng which is used to hack wifi. I will show you both GUI version and manual steps (command based).

HEre is GUI steps:-

go to applications> exploitation tools> wireless exploitation> wlan exploitation> gerix-wifi-cracker-ng.

In Gerix:-
Configure: go to configuration
1) set card to monitor mode. Highlight Monitor Mode, then. 
2) rescan networks.  (hightlight networks) 
3) Highlight Network, and monitor card, clean old session,  now goto WPA tab.
4) in wpa tab,  click 1st start sniffing. 
    #Auto Load victim 
    #Client deAuthentication 
5) now go to cracking tab. click on WPA bruteforce cracking.
6) in normal cracking, add the path of dictionary as in given below.
7) Run the crack on the test file, put your password in the list to test.

Once you get the handshake goto crack wpa, and select your dictionary file in, normal cracking. 
File location /darkc0de.lst
root@bt:/pentest/passwords/wordlists# pwd
/pentest/passwords/wordlists/darkc0de.lst      here  o in darkc0de is a zero not O.
then press aircrack-ng crack WPA password button... 
cracking is start.........

Here is Manual Steps for doing the all process of gerix-cracker. 

Steps:

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 -0 5 -a (bssid) mon0
6)aircrack-ng (filename)*.cap -w (dictionary location)

NOTE: I am using default dictionary of bt5 and cracking is done according to the dictionary. This dictionary can only break alphanumeric passwords. For better  results, download more efficient dictionaries....

Keep visiting for more tips n tricks n njoy hacking......