PFU - PupFileUnpacker

PFU is a Python tool for extracting and analyzing PS4 firmware update files (PUPs). It provides an easy way to unpack and inspect the contents of PUP packages.

Features

• Extracts all files and metadata from PUP archives
• Prints extensive details about the package contents, including:
• Firmware version
• Number of files contained
• Installation instructions
• File paths
• File sizes
• SHA-256 hashes
• Intuitive GUI to select PUP files to unpack
• Saves extracted files to output directory
• Actively maintained and open source

Usage

Dependencies

PFU requires Python 3 and the following modules:

• tkinter
• struct
• lzma
• pycryptodome

Install dependencies with:

pip install tkinter struct lzma pycryptodome

Basic Usage

1. Clone the GitHub repository:

git clone https://github.com/seregonwar/Pup-file-extractor.git

2. Install dependencies:

pip install -r requirements.txt

3. Run the script with:

python pup_unpacker.py

4. Use the dialog to select a PUP file.
5. The content will be extracted to your working directory.

Advanced Usage

The pup_unpacker.py script has extensive documentation on all functions and classes. Developers can easily integrate the PUP extraction functionality into their applications.

See the wiki for more usage details.

Project Structure

• pup_unpacker.py: Main GUI script to select and extract PUP files.
• pup_decrypt_tool.py: Tool to decrypt PUP files.
• ps4_dec_pup_info.py: Module to extract information from decrypted PUP files.
• pup_module.py: Module to manage the PUP file extraction logic.
• Pupfile.py: Module to read and interpret PUP files.

Credits

The PUP extraction logic was adapted from ps4_dec_pup_info by SocraticBliss.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Disclaimer

This tool is only for educational and investigative purposes. I am not responsible for any misuse or damage caused by this tool.

State of development

The development of this software is currently at a standstill. The code is complete and partially fulfills its intended functionality, but I am seeking a way to decrypt all update files encrypted with AES-256. The PFU feature is finished, but it cannot fully and properly extract the files. If I had access to Sony’s encryption keys and integrated them into the code, the decryption process would be much simpler. I will continue to release patches to address any bugs.