MSOfficeBrute

🚀 A fast, parallel brute-force cracker for password-protected Microsoft Office files (.xlsx, .docx, etc.).
Leverage your CPU's full power, customize the character set, and crack passwords through raw processing power.

🔧 Features

• Supports .docx, .xlsx, .pptx (modern Office formats)
• Multi-core support via Python multiprocessing
• Real-time progress display using tqdm
• Configurable character set (lowercase, uppercase, digits, symbols)
• Adjustable password length and chunk size
• Automatically detects number of logical CPU cores

⚙️ Requirements

• Python 3.10+
• msoffcrypto-tool
• tqdm

Install dependencies:

pip install msoffcrypto-tool tqdm

🚀 Usage

Edit the configuration block at the top of main.py:

file_path = "protected_file.xlsx"
min_length = 1
max_length = 4
chunk_size = 5000

Enable or disable character types:

use_lowercase = True
use_uppercase = False
use_digits = True
use_symbols = False

Then simply run the script:

python main.py

You'll see output like:

🚀 Starting brute-force attack
⚙️  Processes: 24
🔤 Charset: abcdefghijklmnopqrstuvwxyz0123456789
🔢 Password length: 1 to 4
🧩 Chunk size: 5000

✅ Password found: mypass123
⏱️  Finished in 58.43 seconds.

❗ Disclaimer

This tool is intended for educational purposes or authorized testing only.
Do not use it on files or systems you do not own or have permission to test.

📄 License

MIT License