Wednesday, 22 May 2013

How to Hack a Website Login Page With Brute Force

Brute force cracking

Brute force (also known as brute force cracking) is a trial and error method used by application programs to decode encrypted data such as passwords or Data Encryption Standard (DES) keys, through exhaustive effort (using brute force) rather than employing intellectual strategies. Just as a criminal might break into, or "crack" a safe by trying many possible combinations, a brute force cracking application proceeds through all possible combinations of legal characters in sequence. Brute force is considered to be an infallible, although time-consuming, approach.

What is Brute-Force?

Brute-force is a type of attack in which every possible combination of letters, digits and special characters are tried until the right password is matched with the username. The main limitation of this attack is its time factor. The time it takes to find the proper match mainly depends on the length and complexity of the password.

Requirements:

The tool we will be using ” BrutusA2”(Download: http://www.hoobie.net/brutus/)
You need to know the target suppose “ftp://123.123.xx.xxx”
Procedure:

Step 1.Here I have shown an authentication page of an FTP service in the image below and in the following steps we will crack its password using brutus.

Step 2.Now open up “Brutus” and type your desire target ,select wordlist and select “FTP” from the drop down menu and click start. If you are confused then follow the image below.

Step 3.The time it takes as I mentioned above depends on the complexity and length of the password.So after clicking the start button wait for the time as mentioned in the tool.The password will be displayed as shown above.
Recommendation: I would recommend the readers to try it in a virtual environment as I did and enjoy the trick.It is not advisable to try it on some unknown user without prior permission.