![]() Use "Random" for generating a random challenge for each requests (Default) Below we will show you how to capture a NETNTLMv1 hash using Responder and Kali Linux and then cracking the NTHASH (password equivalent) for free using our service which works 100% of the time.įirst you’ll want to install Kali Linux and edit the /etc/responder/nf file to include the magical 1122334455667788 challenge. There’s a number of articles on the LmCompatibilityLevel setting in Windows, but this will only work if a client has this setting at 2 or lower. ![]() Keep in mind that this will only work for clients that are susceptible to being downgraded to using LANMAN or NTLMv1 (typically enabled if there’s any pre-Windows Vista machines on the network). The best ways to capture NETLM/NETNTLMv1 authentication is through either something like Metasploit’s SMB Capture or with Responder.
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