Windows smb smb_relay

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View Cookie Policy for full details. Note You must restart the computer after you make these changes. Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly.

Before you modify it, back up the registry for restoration in case problems occur. You can use this method on different versions of Windows. Open the Group Policy Management Console. In the console tree under Computer Configuration , expand the Preferences folder, and then expand the Windows Settings folder. Right-click the Registry node, point to New , and select Registry Item.

This procedure disables the SMBv1 Server components. This Group Policy must be applied to all necessary workstations, servers, and domain controllers in the domain. Alternatively to Responder, Metasploit Framework has a module which can be used to capture challenge-response password hashes from SMB clients.

As previously when the user will browse the same share his password hash will be captured by Metasploit. If the password policy inside the company is sufficient it will take possibly days or weeks for the attacker to crack the captured hash. Therefore it is also possible to combine this technique with SMB relay that will serve a payload in order to retrieve a Meterpreter shell from every user that will access the share.

Coresecurity has released a set of python scripts called Impacket that can perform various attacks against Windows protocols such as SMB. Using the smbrelayx python script it is possible to set up and SMB server that will serve a payload when the target host will try to connect. This will performed automatically since the SCF file will enforce every to user to connect to a non-existing share with their credentials.

Metasploit Framework needs to be used as well in order to receive back the connection upon execution of the pentestlab. When the user will browse the share the SMB server will receive the connection and it will use the username and the password hash to authenticate with his system and execute the payload to a writable share.

If not the above, you can simply Phish. A simple email which has a misleading link may help you trick the user into authenticating against your machine.

The trick though is that the link points to my machine. The user may just think it was sent to the wrong person. There are server exposed to the internet which can be exploited. The attacker could spinup a cloud Instance which could relay the attack over the internet.

Although it would be tricky, attackers with strong enumeration skills could successfully complete the attack. You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email.

Notify me of new posts via email. Create a website or blog at WordPress. Attacker IP: Just Windows Windows Explorer can be used to find network shares. Once we run the exploit, we will just need to trick the user into hitting our IP.