Ophcrack - Free, Open Source Windows Password Cracker Software

If you are a Windows System Administrator, IT Support or Windows power user, sometimes you may have a hard time to recover lost passwords from Windows machines. For these cases, Ophcrack is a really time saver software utility for you. Ophcrack use the rainbow tables to crack the passwords.

It is a GUI tool. That means, it is a very convenience tool for the people whose don't want to use or not familiar with command line programs.

Features of Ophcrack

The followings are some cool features of the Ophcrack software (copied form their site).

  • Runs on Windows, Linux/Unix, Mac OS X, ...
  • Cracks LM and NTLM hashes.
  • Free tables available for Windows XP and Vista/7.
  • Brute-force module for simple passwords.
  • Audit mode and CSV export.
  • Real-time graphs to analyze the passwords.
  • LiveCD available to simplify the cracking.
  • Dumps and loads hashes from encrypted SAM recovered from a Windows partition.
  • Free and open source software (GPL).

Ophcrack - Free, Open Source Windows Password Cracker Software

Ophcrack Versions

Currently, this time of writing, the latest version of Ophcrack is 3.4.0 and we can download as two version. First one is Ophcrack for all Windows platform, supporting Windows 2000, XP, Vista and Windows 7. It is a 32-bit installer. We need to install the software to use it.

The second one is Live CD version. With LiveCD, we don't have to install into the machine. We can burn the ISO files to the CD and run directly without installing. This is very useful if we don't know the Windows passwords. There are three versions available for the Live CD.

  1. ophcrack XP LiveCD: cracks LM hashes (Windows XP and earlier)
  2. ophcrack Vista LiveCD: cracks NT hashes (Windows Vista and 7)
  3. ophcrack LiveCD: does not include any tables (if you already downloaded them)

Downloading the Ophcrack & Other Resources

  1. Download Ophcrack for All Windows - Installer
  2. Download Ophcrack for All Windows - LiveCD
  3. Ophcrack Project home page at SourceForge
  4. Ophcrack Rainbow tables
  5. How to use Ophcrack software - Wiki at SourceForge
  6. FAQs of Ophcrack software - Wiki at SourceForge

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