Responder vs Mimikatz: Which Kali Linux Tools tool is Best in 2025?

Responder is a robust, open-source tool designed for network penetration testing, specializing in Link-Local Multicast Name Resolution (LLMNR), NetBIOS Name Service (NBT-NS), and Multicast DNS (mDNS) poisoning. Pre-installed on Kali Linux, Responder enables cybersecurity professionals and ethical hackers to intercept network authentication requests, capture NTLM hashes, and perform man-in-the-middle (MITM) attacks by mimicking legitimate servers. Developed by Laurent Gaffié, it targets Windows environments where LLMNR and NBT-NS are enabled by default, making it a powerful tool for credential harvesting and network security assessments.

Mimikatz is an open-source, highly potent post-exploitation tool developed by Benjamin Delpy for extracting plaintext credentials, NTLM hashes, and Kerberos tickets from Windows systems. Available on Kali Linux at /usr/share/windows-resources/mimikatz, it is a cornerstone for penetration testers, red teamers, and ethical hackers conducting authorized security assessments. By leveraging Windows’ memory structures, Mimikatz uncovers sensitive authentication data, enabling privilege escalation, lateral movement, and persistence in compromised environments.