crack-7z-hash

Extract and crack password hashes from encrypted 7z archives.

Updated Feb 24, 2026

Search Tags:#data access #cybersecurity #forensics #7z #hash cracking #password recovery

Ready to run

npx skills add https://github.com/Zurybr/lefarma-skills --skill crack-7z-hash-zurybr

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: crack-7z-hash
Source: https://github.com/Zurybr/lefarma-skills/tree/main/letta/benchmarks/trajectory-only/crack-7z-hash
Command: npx skills add https://github.com/Zurybr/lefarma-skills --skill crack-7z-hash-zurybr

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires hashcat, john, 7z, 7z2john.pl, and includes references (resource) components.

What problem does it solve?

This skill helps users recover forgotten or unknown passwords for password-protected 7z archives, enabling access to critical data.

Core Features & Use Cases

Hash Extraction: Extracts password hashes from 7z archives using 7z2john.
Cracking: Utilizes tools like Hashcat or John the Ripper for dictionary or brute-force attacks.
Verification: Confirms recovered passwords by testing them against the original archive.
Use Case: You have a 7z archive containing important project files, but the password has been lost. This skill guides you through the process of cracking the password to regain access.

Quick Start

Use the crack-7z-hash skill to extract the hash from 'my_archive.7z' and attempt to crack it using the 'wordlist.txt' file.

Frequently Asked Questions about crack-7z-hash

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I recover a lost 7z archive password?▼

To recover a lost 7z archive password, you must extract the hash using 7z2john and then run dictionary or brute-force attacks with Hashcat or John the Ripper to crack it.

What is the best way to extract a 7z hash for password cracking?▼

The best way to extract a 7z hash for password cracking is using the 7z2john.pl script to extract the hash, which can then be targeted by tools like Hashcat or John the Ripper.

Does Hashcat work with 7z archive hashes?▼

Yes, Hashcat works with 7z archive hashes by processing the extracted hash from 7z2john, utilizing dictionary attacks to recover the forgotten or unknown password for the encrypted file.

What tools do I need to crack a 7z password hash?▼

You need the 7z utility, 7z2john.pl for hash extraction, and either Hashcat or John the Ripper to perform the actual password cracking against the extracted 7z hash.

Can I use John the Ripper for 7z password recovery?▼

Yes, you can use John the Ripper for 7z password recovery by feeding it the hash extracted via 7z2john, executing a brute-force or dictionary attack to regain access to your data.