Monday, February 18, 2008

John The Ripper Password Cracker!

John The Ripper Password Cracker!
This is for educational purpose for newbees….

I have complied a basic tutorial about how to use John the ripper software. Before moving on, to the actual procedure on how to use the software, I will give you a general overview of what “John the ripper” basically is…..

<< Introduction >>

John the Ripper is a fast pa**word cracker, currently available for
many flavors of Unix (11 are officially supported, not counting
different architectures), DOS, Win32, BeOS, and OpenVMS (the latter
requires a contributed patch). Its primary purpose is to detect weak
Unix passwords. Besides several crypt(3) pa**word hash types most
commonly found on various Unix flavors, supported out of the box are
Kerberos/AFS and Windows NT/2000/XP LM hashes, plus several more with
contributed patches.

Well, this is a basic tutorial where I will teach u the basic thing---crackin passwords.
First of all, u need to have a encrypted pa**word with u in a text file say u saved the pa**word in a.txt . Now to copy this file
go to the directory where John the ripper is installed
u hav 2 directories there --1)docs 2)run
enter the run directory n paste the file here
Let me clear u all tat John the ripper is not a gui software so unlike other pa**word crackers u'll have to use dos to use John the ripper. And between remember never be lazy to use dos as its a hackers best friend. Type cmd into the run window so that u enter dos n enter the run directory
You'll find a executable file here(.exe) it must b named john-386.exe but it may vary from version to version
Now comes the MOST important part what u have to do now is use a command
You'll have something written
C:/bla/blabla/run:>

First write the name of the .exe file the name of your pa**word text file
in our case it will be--
You'll have something written like

C:/bla/blabla/run:>john-386 a.txt

And thats it u have started cracking your encrypted pa**word. Wait for sometime it may be as long as 2 hrs……
When the pa**word recovery is over your decrypted pa**word gets saved in a file name john.pot u can open it using notepad and done. You have your pa**word finally….













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