You're looking for a solid guide on WebKiller, a tool available on GitHub.
Webkiller is an open-source information-gathering tool written in Python, designed to streamline reconnaissance tasks during the early stages of a security assessment or penetration test. It is maintained by the Ultra-Security team on GitHub. Overview webkiller github
Alternative search query on GitHub:
Port Scanning: Identifies open and closed ports on a target network to find potential entry points. You're looking for a solid guide on WebKiller,