Showing posts with label Password Cracker. Show all posts
Showing posts with label Password Cracker. Show all posts

Tuesday, August 7, 2012

chapcrack: A tool for cracking MS-CHAPv2 network handshakes

Chapcrack is a tool for parsing and decrypting MS-CHAPv2 network handshakes. In order to use it, a packet with an MS-CHAPv2 network handshake must be obtained. The tool is used to parse relevant credentials from the handshake. In other words, Chapcrack parses the credential information out of MS-CHAPv2 handshakes, sends to Cloudcracker which in turn will return a packet that can be decrypted by Chapcrack to recover the password.

The resulting file (“token”) is then submitted to CloudCracker, an online password cracking service for penetration testers and network auditors, which returns the cracked MD4 hash in under a day. For each handshake, it outputs the username, known plaintext, two known ciphertexts, and will crack the third DES key. Whats interesting to know is that Cloudcracker forwards your handshake information to a Pico Computing’s DES cracking box, which is powered by a FPGA box that implemented DES as a real pipeline, with one DES operation for each clock cycle. With 40 cores at 450mhz, that’s 18 billion keys/second!

The hash is inserted into chapcrack, and the entire network capture is decrypted. Alternatively, it can be used to login to the user’s VPN service or WPA2 Enterprise radius server. All of this is possible only because of the weak protocol architecture that allows MD4 hash of the user’s password to be authenticated as them, as well as to decrypt any of their traffic.

How to use chapcrack?

  • Obtain a packet capture with an MS-CHAPv2 network handshake in it (PPTP VPN or WPA2 Enterprise handshake, for instance).
  • Use chapcrack to parse relevant credentials from the handshake (chapcrack parse -i path/to/capture.cap).
  • Submit the CloudCracker token to
  • Get your results, and decrypt the packet capture (chapcrack decrypt -i path/to/capture.cap -o output.cap -n )


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Sunday, December 4, 2011

Large Password List: Free Download Dictionary File for Password Cracking

For password cracking, you can choose two different methods 1. Dictionary Attack 2. Brute Force Attack. The Dictionary attack is much faster when compared to Brute force attack.(There is another method named as "Rainbow table", it is similar to Dictionary attack).

In order to achieve success in dictionary attack, we need a large size of Password list.

Here is the list of 1,717,681 passwords(Free to download):

If you didn't get success using the above password list, then you can get the UNIQPass dictionary file from dazzlepod.

UNIQPASS is large password list useful for use with John the Ripper (JtR) wordlist mode to translate even more hashes into cleartext passwords. While we have had good success rate with our standard password list passwords.txt (17.5MB), we realized the list can be made more useful and relevant if we include commonly used passwords from the recently leaked databases belonging to large websites. As a result, we have compiled millions of unique passwords into UNIQPASS.

UNIQPASS is available for purchase at only $4.99; see preview of UNIQPASS from these 2 million randomly selected passwords (18.9MB).

Get the UNIQPass Dictionary file from here:
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Sunday, October 2, 2011

Online IMVU & DynDNS Password Decoders from Security Xploded

SecurityXploded provides online decoders for IMVU and DynDNS.

IMVU: is a popular 3D based social game and entertainment site where millions of people meet, chat, play games and have fun.
DynDNS: popuar Dynamic DNS management solution offering enterprise-level DNS performance and reliability.

  • New Online IMVU password decoder to instantly recover the password stored by IMVU messenger.
  • And Online DynDNS password decoder to recover password from DynDNS desktop client.

IMVU Cracker:

DynDNS cracker:

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Sunday, September 25, 2011

AIM (AOL Instant Messenger) Password Decrypter ~ Cracking Tools

AIM is one of the most popular messenger which stores the user's account passwords in encrypted form in order to protect it from Intruders. If you forget your password and still have the stored encrypted password, there is chance to recover your password.

AIM Password Decryptor is a free software that can recover the lost password from the Hashcodes. This software supports AIM v6.x to v7.5. It comes in two different interface namely command line and GUI. This is best tool for basic users, PenTesters and & Forensic investigators.

  1. Instantly recover the passwords from all versions of AIM (6.x - [latest])
  2. Comes with both GUI interface as well as Command-line version in one tool.
  3. Recover password of any length and complexity.
  4. Useful for Penetration Testers and Forensic investigators.
  5. Save the recovered password list to HTML file for transferring to other system or for future use.
  6. Easier and faster to use with its enhanced user friendly GUI interface.
  7. Integrated Installer for local Installation & Uninstallation of Software.

Operating System supported:
Windows XP,Windows 7.

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Sunday, August 28, 2011

How to Recover Windows 7 Password~Windows Password Killer Tool

I have explained how to recover the lost password using Backtrack Password Cracking. Here i am going to introduce a new tool named as Windows Password Killer. It enables you remove windows 7 password to reset the administrator, standard user and guest passwords easily without any data losing or file damage.

There is 3 different editions - the Lite, Pro and Ultimate, here we take the Pro edition as an example for the password remove process with USB drive (CD/DVD also supported too).

1. Any Accessible Computer.
2.USB Drive or CD/DVD

Step 1: Install Password Killer
Download the Windows Windows Password Killer from Here. 
Install the windows Password Killer in your friends or any accssible computer.
Step 2:Burn a bootable CD/DVD or an USB drive
  1. Insert the USB Drive or CD/DVD.
  2. Run the Windows Password Killer.
  3. Select the USB drive or CD/DVD.
  4. click the Create button.
  5. It will ask you to verify whether you select correct disk or not. Click "Yes" button.

Step 3: Boot from USB Drive OR CD/DVD 
Now let us come to our locked computer.
  • Insert your USB Drive before turn on the system(if you are using CD/DVD, you have to turn on and insert). 
  • Now turn on the system, press F10 or F12(it may vary for your system) to choose the booting device. 
  • Select the USB drive or CD/DVD.
It will boot into Windows Password Killer.

Step4 : Reseting Password
After program starts, select Windows 7 system on the start page, click 'Next'.

Select your target user accounts, and then click 'Next' to proceed the Windows 7 password recovery/unlock process.

The Windows 7 Administrator password or other user accounts password is reset successfully now. Take out the password reset CD/DVD, click 'Reboot' to restart your computer.

Want to say thanks?!
Sorry i don't need your thanks, i just want your like in my Facebook Fan page.
or Just follow us in twitter:
or Just share this with your friends.
Thank you from BreakTheSec, if you did.

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Thursday, August 4, 2011

How to Install John The Ripper On Ubuntu Linux? -Works for All Linux

This article will guide you how to install John The Ripper Tool(Password Cracker) in your ubuntu or Any other Linux and Unix Based System.

1. John The Ripper: Download the Latest and Free Version from here:
 It will be in tar.gz format, namely john-1.7.7.tar.gz 

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John The Ripper Tutorial-Password Cracking Softwares

What is John the Ripper?
John the Ripper is a fastest and Best Password Cracking software. It is compatible with many flavours of Unix, Windows, DOS, BeOS, and OpenVMS.

Its primary purpose is to detect weak Unix passwords. Besides several crypt(3) password hash types most commonly found on various Unix systems, supported out of the box are Windows LM hashes, plus many more with contributed patches

Info about John The Ripper:
  • It is command Line Password Cracker(Don't worry , i will guide how to use John the Ripper?).
  •  John The Ripper is available for free
  • JohnTheRipper is pre Installed in Backtrack Linux
  • You can download it for other Linux Versions or any other operating system(Eg:windows xp).  
  • Supports Both Brute Force and Dictionary Attack Methods
  • Fast and Best password Cracker.
Download John The Ripper From Here:
More Articles About John The Ripper:
How to Install John The Ripper on Linux and Windows?

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Sunday, July 31, 2011

BTCrack- A Bluetooth Pass Phrase Bruteforcer

We have come across HTTP,FTP and SMTP Brute Forcers. But BTCrack is the First Bluetooth Pass phrase (PIN) bruteforce tool.

How it works?
It works by reconstructing the PIN and link key with data sniffed during a pairing exchange.
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Tuesday, July 19, 2011

How to Crack password protected RAR files like a hacker (Brute Force attack)?

Install the RAR password remover software as said in my last post.
Let me show how to crack the password protected RAR files using Brute Force attack method.

Step 1:
Run the application start->Allprograms->RAR password Recovery->RAR password Recovery

Step 2:
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Monday, July 18, 2011

Rar Password Remover Tool | Password Cracking

  • Sometimes if you download rar files from internet, it may be password protected.
  • In your friends laptop they may have password protected rar files.
  • Sometimes you may forget password for your rar files
What will you do in these situation? Yes.there is solution for these situation. You can use the RAR p
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Thursday, June 9, 2011

How to hack the Windows 7 or Vista passwords-Become a hacker

Hi BreakTheSecurity(BTS) hackers,
"How to Hack windows admin?" This will teach you how to hack the windows password. You can use the above tutorial for hacking any type of windows Operating system. For Example: you can hack the latest Windows 7 also.

There is only one change is required to do. i.e., You have to choose the correct Rainbow table corresponding to the Operating system that you are going to hack.
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Tuesday, June 7, 2011

How to Hack the Windows Admin Password Using OphCrack in Backtrack tutorial

In this post, i am going to help you to crack the any type of windows accounts passwords. Learn how to hack the windows admin password like a geek.

This is My Second Backtrack Linux Tutorial.
[see the screen shots of this tutorial ]

Refer this link also: How to hack the windows 7 or vista using the following method

  • BackTrack Linux 4 or 5. Download it from
  • One pen drive(above 4gb)
  • Xp Free Fast RainBow table []. Download it from here: 
*Install the Backtrack Linux in the pen drive with small amount of persistent memory.

Step 1: Booting From Back Track
Insert the pen drive in target computer[when turned off].  We are going to boot the operating system from pen drive, so insert when the system is turned off.
Now Turn on the system.
Press F10 [boot menu, differs for system]  before booting and select boot from Pen drive. 
Now it will boot the Backtrack.
Select "Graphical User Interface "
Now wait for a while ( it will execute some commands}
Now you can see the "root:"
type "startx" and hit enter.  It will bring you to the GUI view of Backtrack.

Step 2:Copy the SAM and System files
Click the  Start button(dragon symbol)
Select System Menu
Select Storage Media(if you see nothing, close the window open it again).

You can see the list of Hard disk and Your pen drive.
Open the windows installed Hard disk and Navigate to this path:

There you can see two files named as "SAM" and "System". 

Copy the both SAM and system files .
[ Just proceed to next step without closing the window]

Create a new folder in the desktop and paste the files inside.

Step 4: Run OphCrack Tool in Backtrack
Open the ophcrack GUI(start->Backtrack->Privilege Escalation->Password Attack->offline Attacks-ophCrack GUI).

Step 5: Loading the folder that contains sam and system files

Click the Load and select "Encrypted SAM" in ophcrack tool.
Now it will ask you to select directory that contains SAM folder. Select the directory where you saved the SAM file.

Now it will load and display the list of user accounts in the windows.

Step 6: Target the Admin Account
Here i am going to hack the one of the administrator account of my computer. So remove all other accounts except the target admin account.

Step 7: The Rainbow Table

Extract the "" file in the desktop.

Click the Table button in ophcrack tool. Now it will ask you to selec the table.  Select the "XP free fast" and click the install button. Now browse to the Rain bow table directory "tables_xp_free_fast"
Now click ok.

Step 8: Cracking Begins
Click the Crack button.
Wait for a while [ophcrack is the fastest cracking tool. so it won't take too much time]

Step 9: Password is cracked
Yes..!! we got the password.

Don't forget to share with your friends.

Screen shots :
Screen shots windows Admin Password Cracking

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How to Crack Windows Accounts Example Screenshots Tutorial

Hi Break The Security hackers, this is just screen shot.  The Detailed Text version tutorial can be found in this link:
How to hack Windows accounts Password with Ophcrack?

I have separated it into two parts because of too large number of Screen shots. 

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