ophcrack

Ophcrack

Ophcrack is a free, open source Windows password cracking tool that uses rainbow tables to retrieve lost or forgotten passwords. It can crack passwords up to 14 characters in length.
ophcrack image
password recovery cracking rainbow-tables

Ophcrack: Free Windows Password Cracking Tools

A free, open source tool for retrieving lost or forgotten Windows passwords using rainbow tables, up to 14 characters in length.

What is Ophcrack?

Ophcrack is a free, open source Windows password cracking tool that uses rainbow tables to retrieve lost or forgotten passwords. It runs on Windows, Linux, and Mac OS X.

Some key features of Ophcrack include:

  • Uses pre-computed rainbow tables for fast password cracking
  • Can crack Windows login passwords up to 14 characters in length
  • Recovers passwords by analyzing hashed passwords stored in the SAM file
  • Has graphical user interface for ease of use
  • Runs on Windows, Linux, and Mac OS X
  • Free to download and use

Ophcrack is often used by system administrators to recover forgotten admin or user passwords. It can also be used by parents to monitor their children's computer use. While it can be used for malicious purposes, Ophcrack serves a legitimate purpose for recovering passwords and auditing password security.

Ophcrack Features

Features

  1. Uses rainbow tables for password cracking
  2. Cracks Windows passwords
  3. Open source and free
  4. Can crack passwords up to 14 characters long
  5. Supports LM hashes and NTLM hashes
  6. Graphical user interface
  7. Command line interface
  8. Runs on Linux, Mac OS X and Windows

Pricing

  • Open Source

Pros

Free and open source

Easy to use graphical interface

Fast cracking for short passwords

Active development and community support

Cons

Limited password length cracking ability

Requires large rainbow tables for effective cracking

Slower than GPU-powered cracking tools

Only cracks Windows passwords


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