fcrackzip

name: fcrackzip description: "Auth/lab ref: ZIP password-cracking utility for dictionary and brute-force testing. For you need a focused CLI workflow against password-protected ZIP archives before escalating to heavier cracking stacks." compatibility: "Linux, macOS, WSL; package-manager friendly; ZIP archives only." metadata: author: AeonDave version: "1.0"

Specialist ZIP password cracking with less ceremony than the bigger frameworks.

When to use fcrackzip

Use fcrackzip when you need to:

test a ZIP archive against a wordlist quickly
brute-force a narrow password space for ZIP only
verify whether a known candidate password opens the archive

Quick Start

# Dictionary attack and verify extraction
fcrackzip -D -p rockyou.txt -u archive.zip

# Brute-force simple character sets
fcrackzip -b -c 1aA -l 1-8 -u archive.zip

Practical Notes

-u verifies the password against unzip logic instead of only reporting a guess.
Start with a dictionary attack unless you have strong evidence the keyspace is tiny.
If the archive source is known, build targeted masks before going full brute force.

Caveats

ZIP-only specialization is its strength and its boundary.
Brute force becomes painful fast; switch to better-targeted tooling when entropy rises.
Some workflows are better served by john or hashcat once you extract the relevant hash material.

Resources

No bundled scripts/, references/, or assets/. Use the local man page for charset syntax and mode details.