Mimikatz vs JD-GUI vs Yersinia vs sqlmap: Which Post Exploitation tool is Best in 2025?

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.

JD-GUI is an open-source, standalone graphical Java decompiler, available on Kali Linux at /usr/bin/jd-gui, designed for reverse-engineering compiled Java applications by extracting readable source code from .class or .jar files. Developed by Emmanuel Dupuy and packaged for Kali by Sophie Brun, JD-GUI provides a user-friendly GUI to browse class hierarchies, view decompiled Java code, and save sources as .java files. Ideal for cybersecurity researchers, Android developers, and ethical hackers, it supports malware analysis, code auditing, and vulnerability research. Often paired with tools like Dex2Jar, JD-GUI simplifies Java bytecode analysis.

Yersinia is an open-source, robust framework for executing layer 2 (Data Link Layer) network attacks, designed to exploit vulnerabilities in various network protocols. Integrated into Kali Linux, Yersinia empowers cybersecurity professionals, penetration testers, and network administrators to analyze and test the security of deployed networks. Named after the plague-causing bacterium Yersinia pestis, it targets protocols like STP, DHCP, CDP, and VLAN, enabling users to simulate attacks such as DHCP starvation, VLAN hopping, and spanning tree manipulation.

sqlmap is a premier open-source tool pre-installed in Kali Linux (version 1.9.4), tailored for penetration testers and ethical hackers. This automated SQL injection tool for web application security detects and exploits SQL injection flaws across databases like MySQL and PostgreSQL, making it a leading database vulnerability scanner for cybersecurity professionals. With a 10.64 MB footprint and support for advanced injection techniques, sqlmap automates database enumeration, data extraction, and OS access, delivering robust security assessments.