Shodan - Shodan is the world's first search engine for Internet-connected devices.
Armitage - Armitage makes penetration testing easy by adding a GUI to the Metasploit framework
Cobalt Strike - Advanced threat tactics for penetration testers.
Social-Engineer Toolkit - The Social-Engineer Toolkit is an open source penetration testing framework designed for social...
Censys - Censys helps organizations, individuals, and researchers find and monitor every server on the Internet to reduce exposure and improve security.
IVRE - Network recon framework, including a web interface to browse Nmap scan results.