Password Cracking Dictionary Generators

This is a collection of small scripts and tools that can help in password cracking dictionary generation. Especially useful if you have an idea about what the expected password might be.

Leetspeak Generator (Python) (leetspeak-generator.py)

A Python-based leetspeak generator that takes an input string of up to three words and generates all possible leetspeak variations.

Overview

Leetspeak, also known as 1337 or leet, is an alternative alphabet used primarily on the internet. It uses various combinations of ASCII characters to replace certain letters. This tool allows you to generate all possible leetspeak variations of an input string containing up to three words. The resultant list can then be used as a base dictionary for password cracking. This comes in handy when targeting a particular organisation say 'mega corp'.

Generating a list using the input phrase 'mega corp' to start with generates a ~1.1MB file with 93312 lines. Generating a list using the input phrase 'mega company' to start with generates a ~53MB file with 3359232 lines.

As you can see, using a long/large starting input is not ideal as it will quickly generate large lists.

Features

• Accepts input of up to three words, separated by spaces
• Supports command line arguments for direct input and help message
• Generates all possible leetspeak variations for the given input string, including spaces
• Ignores numbers, special characters and upper case letters.

How to Use

Interactive Mode (default)

• Run the script using the following command: python leetspeak-generator.py

Direct Input Mode

• Run the script with the input string directly using the following command: python leetspeak-generator.py -i "words here"
• The script will generate and display all possible leetspeak variations of the input string.
• Save to file with something like python leetspeak-generator.py -i "words here" > words_here_leet.txt

In practice

The dictionary generated by itself is likely of little use/success in password cracking directly (although you might get lucky!), but ideally this is combined with rules from hashcat or similar. Using this as a base dictionary and then running rules against it is ideal.

Display Help Message

• Run the script with the -h flag to display the help message: python leetspeak-generator.py -h

Customization

The leetspeak character substitutions are defined in a dictionary within the script. You can easily update or modify the dictionary to include additional characters or alternative substitutions as needed. You can also up the word limit, but I wouldn't reccomend it as it'll create massive files.

ToDo

Add more variation from: https://www.gamehouse.com/blog/leet-speak-cheat-sheet/

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Case Permutation Generator (Python and C) (case-permutation (.py/.c))

Overview

A quick script to generate all possible combinations of upper and lowercase characters for any given (pass)word. Ignores special/numerical characters. Pretty quick as long as the length of your input word is reasonable.

How to Use

If you only provide the word and no output file, it will print the permutations to the screen.

Compile the C program

• Compile with gcc -O3 -march=native -o case-permutation case-permutation.c

Interactive Mode (default)

• Run the script using the following command: python case-permutation.py

Direct Input Mode

• Run the script using the following command: python case-permutation.py example output.txt

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Case Swapping Generator (Python) (swapcase.py)

Overview

A generator that takes an input file and swaps upper/lowercase per character for that word. Simulatiting if someone left capslock on and still used shift for example.

How to Use

If you only provide the dictionary input and no output file, it will print the permutations to the screen.

Direct Input Mode

• Run the script using the following command: python swapcase.py -i dictionary.txt -o output.txt

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Keyboard Walker (Python) (keyboard_walk.py)

Overview

A generator that lets you specify a keyboard layout and then generates a 'walk' along the keys of arbitrary length. For example 1q2w3e or qwerty

How to Use

If you only provide the dictionary input and no output file, it will print the permutations to the screen.

• Run the script using the following command: python3 keyboard_walk.py -l 4 -o walking-4-shifted2 -k qwertyshifted2

options:
  -h, --help            show this help message and exit
  -l LENGTH, --length LENGTH
                        Length of the walks
  -o OUTPUT, --output OUTPUT
                        Output file name
  -k {qwerty,qwertyshifted,qwertyshifted1,qwertyshifted2,dvorak,azerty}, --layout {qwerty,qwertyshifted,qwertyshifted1,qwertyshifted2,dvorak,azerty}
                        Keyboard layout