Windows Domain - Attack & Defense: 02 NTLM Relay

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Learn what NTLM Relaying is, how attackers do it and how YOU can prevent them doing it on your network.

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0:00 NTLM Relay Attack
5:28 Defend against NTLM Relay
8:17 NTLM Relay fixed
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Awesome video, thanks for uploading this!

Chris
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Thank you for sharing this! Very nice!

jozefwoo
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Is there a way to prevent external NTLM auth requests? Sorry if thats a dumb question, still learning about this

foxxriderr
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Is it possible to reuse AUTHENTICATE_MESSAGE (NTLM to authenticate new HTTP connection. For example if i put AUTHENTICATE_MESSAGE in http authorization header so i can skip first (NEGOTIATE_MESSAGE) and second (CHALLENGE_MESSAGE) pre authetication steps? Is CHALLENGE_MESSAGE only per one http session?

Thanks

mitch
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Thanks for such amazing content. Can you please tell me how to establish connections in order to test the system?

jafarali
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Should we leave (if server agrees) and (if client agrees) disabled?

celtdawg
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Great Video. I couldn't get the crackmap smb command to work the way you demo it here. it just wouldn't list them. I don't know if I am missing something. Very useful video which introduced me to the tool and many thanks.

nxu