Help! My packets/ connections are not correctly. Routing a meterpreter shell over port 445. Usefull when a network firewall is in between.
Capturing NTLMv2 Hashes with Responder (4:46) Password Cracking with Hashcat (11:31) LLMNR Poisoning Defense (2:48).With the recovered clear text credentials we can then proceed to move laterally. The hash that we get is an NetNTLMv2 hash, which we can crack e.g. That´s where responder comes into play, by answering these broadcasts, telling the client that he is deathstar.That's why I think it is mandatory to check SMB configuration in every penetration test (and in your enterprises). Issues in configuration of SMB services can be devastating - anyone who even remotely heard about Responder, Impacket and ntlmrelayx knows what I'm talking about.And then with the help of Responder, phishing emails sent or other tools, we wait for victims to connect. If ntlmrelayx.py is running configured to run one-shot actions, the Relay Server will search for the corresponding Protocol Attack plugin that implements the static attacks offered by the tool.Responder -I eth0 -wrf Where -I is for interface and eth0 is your interface.
This part will only explain how to run Responder and capture hashes. You can not pass the hash with these but you can crack them or you can relay them to other machines.
According to researchers at Preempt, who discovered the flaws, the two CVEs.
Two Microsoft vulnerabilities, CVE-2019-1040 and CVE-2019-1019, would allow attackers to remotely execute malicious code on any Windows machine or authenticate to any web server that supports Windows Integrated Authentication (WIA) such as Exchange or ADFS. This time NTLMRelayX will directly run the payload as an SMB client with the intercepted hashes.
Previously we used Responder and its module MultiRelay previously to gain a pseudo shell which we then used to upload/run a reverse shell payload for our Meterpreter session. NTLMRelayX was in fact an improved fork of SMBRelayX as you can see here.