Kali Linux is preinstalled with over 300 penetration-testing programs, including Armitage (a graphical cyber attack management tool), nmap (a port scanner), Wireshark (a packet analyzer), John the Ripper password cracker, Aircrack-ng (a software suite for penetration-testing wireless LANs), Burp suite and OWASP ZAP web application security scanners [REF].
Kali Linux is based on Debian Testing.