Checkout this step by step guide for wifi cracking or hacking wifi in WPA security using backtrack as a tool from the neighborhood.

2. Cracking Wi-Fi
Network Security
Alven P Luague
Instructor

3. Cracking Wi-Fi
Almost everything is wireless these days. Wireless
networks, or WLANs, came and made everything
easier - easy to set up, easy to use and fun to play
with, and, of course, no more cables lying around.
They conquered private and business sector with
simplicity and flexibility. We connect our phones,
computers, tablets and what not to networks at
home, coffee shops or in the office automatically,
often without a single glance at the info displayed
when connected… and this is where one more “easy
and simple” feature of the WLANs presents itself –
easy and simple to compromise.

4. Nature and design of wireless networks is what
makes them so flexible but also very vulnerable.
Radio antenna on the access point emits radio
waves and every Wi-Fi capable device in range can
“tune in” and connect to the network - and that is
great..
But it also means that not only those who are
permitted to use network resources are able to
connect. With all those waves waving around,
you never know who, and with what intentions,
can tune in and listen. Protection exists, of
course, but sadly, even today it is often
misconfigured or not configured at all

5. Prerequisites
1. Oracle Virtual Machine
2. Backtracks R53
3. Alfa USB Adaptor (AWUS036H)
4. PC or Laptop with Wireless Card
5. Bruteforce or Dictionary Attack

6. Part1 : Installation
Installation in Virtual Machine
Step 1: Create new Virtual Machine

7. Step 2: Create Memory Machine leave the
default settings

8. Step 3: Create Hard Drive (Default setting)

9. Step 4: Leave the default setting

10. Step 5: Leave the default settings (Dynamic
allocated)

11. Step 6: Set the Hardisc size limit to 15G

12. Step 7: Click settings

13. Step 8: Set to secondary master

14. Step 8: Set Network to Host Only Adapter

15. Step 9: Press enter

16. Step 10: Loading Backtracks

17. Step 11: Type startx to load the GUI

18. Step 13: Backtracks is running but in live CD

19. Step 14: Installing backtrack

20. Step 15: Use the entire Disc

21. Step 16: Ready to Install

22. Step 17: Installing the system

23. Step 18: While installing test your wifi usb adaptor

24. Step 19: Check your wireless chip if it is
working

25. Step 20: Backtracks is running but in live CD

26. Step 22: Restart your system after installation is
done

27. Step 23: Type root and toor as password &
change it using passwd command

28. Step 24: After changing password type startx to
run in GUI interface

29. Part2 : Deploying
Fern Wifi
Cracker

30. Step 1: Check virtual machine connectivity

31. Step 2: Check your usb wifi adapter if It is
check or not

32. Step 3: Compare your wireless interface on
backtracks terminal

33. Step 4: Check your internet connection

34. Step 5: Search for target client

35. Step 6: Type : We will deploy fern-wifi cracker

36. Step 7: Type : Download for New Update

37. Step 8: Type : Select interface

38. Step 9: Activate monitor mode and start
scanning . . . WEP / WAP

39. Step 10: Type : Wait for probing access point

40. Step 10: Type : Select the target client,

41. Step 11: Cracking session

42. Step 12: Browse for password file

43. Step 13: Select password file

44. Step 14: Browse for password file

45. Step 15: Wait for mac address to load

46. Step 16: Starting Attack

47. Step 17: Keys Captured

48. Step 18: Keys Save to Database

49. Step 19: Key Database Table

50. Connecting to
target client

51. Step 20: Open WICD Network Manager

52. Step 21: Type capture password

53. Step 22: Validating authentication

54. Step 23: Finally Connected

55. Step 24: Apply on my Netbook to check if its
working

56. Step 25: Encoding Captured password

57. Step 26: Hacked Wifi

58. Cracking Wi-Fi
Chromium Group
Report by
John Henry Gaspay
WPA | WEP
Aileen ManijaimeRaymond Igot