PASSWORD CRACKING TECHNIQUE

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Brute Force Attack

 Brute force password guessing is just what it sounds like: trying a random approach by attempting different

passwords and hoping that one works. Some logic can be applied by trying passwords related to the person’s

name, job title, hobbies, or other similar items.

          Let us assume if the password is 123456

We can try all the combinations from 111111 till 666666. In the process flow we will have a combination 123456 in between, which will be the correct password

          Trying all the combinations from A-Z,0-9,etc is known as Bruteforcing

 Brute force randomly generates passwords and their associated hashes.

 There are tools available to perform the Brute force attack on the Windows SAM File. Most famous tool available for Windows User Account Password Brute forcing is Cain and Abel. Another one is Sam Inside. 

Note:

          While cracking if it asks for password

          Then you have to use some boot cd or pendrive and then open the SAM file and Bruteforce it.

          Operating system installed on the Removable devices are called Live Operating Systems.

Rainbow Table Attack

 Rainbow Table Attack trades off the time-consuming process of creating all possible password hashes by building

a table of hashes in advance of the actual crack. After this process is finished, the table, called a rainbow table, is

used to crack the password, which will then normally only take a few seconds.

 We can use the Live CD to crack the Windows password using the Rainbow table attack technique. Most famous

Live CD available is Oph Crack.

Some live Operating Systems for password Cracking

          OphCrack

          Offline Password Cracker

          Hirren Multi Boot Disk

          ERD Commander

          Admin Hack

          Active Password Changer