BFAC (Backup File Artifacts Checker) is an automated tool that checks for backup artifacts that may disclose the web-application’s source code. The artifacts can also lead to leakage of sensitive information, such as passwords, directory structure, etc.

The tool will provide penetration tester with the following features:

• Multithreaded scanning.
• Includes request rate throttling.
• HTTP proxy support.
• Uses multiple algorithms for automatically detecting valid and invalid pages.
• HTTP proxy support
• User agent randomization.
• Batch processing.
• Works both as a command-line tool and Python module.
• Support for Windows, MacOS, and Linux operating systems.
• Reporting: simple, verbose, CSV, JSON.

You can read more and download this tool over here: https://github.com/mazen160/bfac