mimikatz is described as 'It's well known to extract plaintexts passwords, hash, PIN code and kerberos tickets from memory. mimikatz can also perform pass-the-hash, pass-the-ticket, build Golden tickets, play with certificates or private keys, vault... maybe make coffee?' and is a penetration testing tool in the network & admin category. There are more than 10 alternatives to mimikatz for a variety of platforms, including Linux, Windows, Mac, Web-based and Self-Hosted apps. The best mimikatz alternative is Metasploit. It's not free, so if you're looking for a free alternative, you could try Metasploit or PhoneSploit Pro. Other great apps like mimikatz are ZoomEye, Exploit Pack, Sn1per Professional and Andspoilt.