wmkick

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Table of Contents

Section 1 .................... Overview Section 2 .................... Documentation Section 3 .................... License Section 4 .................... References

1 Overview

WMkick is a TCP protocol redirector/MITM tool that targets NTLM authentication message flows in WMI (135/tcp) and Powershell-Remoting/WSMan/WinRM (5985/tcp) to capture NetNTLMv2 hashes. Once a hash has been captured, popular cracking tools such as Hashcat and JtR can be used to recover plaintext passwords. WMkick automates the hash extraction process and alleviates the need to build/use a WMI (or WSMAN) Auth Server or perform manual packet analysis.

A use case for WMkick is for internal penetration tests. If the penetration tester can redirect these protocols to their own Windows virtual machine or remote target hosting WMI or WSMan services, it is possible to obtain a valid NetNTLMv2 hash, which can be cracked into a plaintext credential, in order to go from a non-credentialed to credentialed perspective. A possible situation that may be observed in the target environment is software or administrative scripts running remote WMI or WSMan commands over a subnet in which wmkick is running, the attacker may take advantage of this.

2 Documentation

See README.INSTALL for requirements and instructions on how to build, test, and install this software.

3 License

The terms and conditions under which this software is released are set forth in README.LICENSE.

4 References

The NT LAN Manager (NTLM) Authentication Protocol is documented here:

https://winprotocoldoc.blob.core.windows.net/productionwindowsarchives/MS-NLMP/%5bMS-NLMP%5d.pdf