Binwalk Extraction Script

This Bash script automates the process of detecting and extracting file segments using binwalk from files stored in a specified directory. It extracts files to a user-defined directory, using dd to extract data based on detected offsets.

How It Works

1. Directory Paths:
   • directoryPath: The path to the directory containing the files to process (e.g., /opt/backup_dataset).
   • extractionDir: The directory where extracted files are saved ($HOME/binwalked_files by default).
2. File Processing:
   • The script finds all files in the specified directory and processes each file using binwalk to detect data offsets.
   • It extracts the segments using dd based on the detected offsets, saving the extracted segments in the output directory.
3. Steps in the Script:
   • Creates the extraction directory if it doesn't exist.
   • Uses binwalk with sudo privileges to extract data.
   • Uses dd to extract specific segments based on hexadecimal offsets detected by binwalk.

Prerequisites

binwalk: Install using sudo apt-get install binwalk or your preferred package manager. sudo permissions: The script requires root access for running binwalk (--run-as=root).

How to Run the Script

1. Clone or download the script to your machine.
2. Make the script executable:

chmod +x your-script-name.sh

3. Run the script:

./your-script-name.sh

4. The script will process all files in the specified directory and save the extracted segments to the designated extraction directory.

Customization

• Modify directoryPath to point to the directory where your target files are located.
• Change extractionDir to your preferred extraction path.