{"action":"opened","issue":{"url":"https://api.github.com/repos/CoreSecurity/impacket/issues/82","labels_url":"https://api.github.com/repos/CoreSecurity/impacket/issues/82/labels{/name}","comments_url":"https://api.github.com/repos/CoreSecurity/impacket/issues/82/comments","events_url":"https://api.github.com/repos/CoreSecurity/impacket/issues/82/events","html_url":"https://github.com/CoreSecurity/impacket/issues/82","id":101785382,"number":82,"title":"Feature Request - SMBRelay Proxy ","user":{"login":"mubix","id":679319,"avatar_url":"https://avatars.githubusercontent.com/u/679319?v=3","gravatar_id":"","url":"https://api.github.com/users/mubix","html_url":"https://github.com/mubix","followers_url":"https://api.github.com/users/mubix/followers","following_url":"https://api.github.com/users/mubix/following{/other_user}","gists_url":"https://api.github.com/users/mubix/gists{/gist_id}","starred_url":"https://api.github.com/users/mubix/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mubix/subscriptions","organizations_url":"https://api.github.com/users/mubix/orgs","repos_url":"https://api.github.com/users/mubix/repos","events_url":"https://api.github.com/users/mubix/events{/privacy}","received_events_url":"https://api.github.com/users/mubix/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-19T01:26:53Z","updated_at":"2015-08-19T01:26:53Z","closed_at":null,"body":"There is a most more in-detail post here: http://www.room362.com/blog/2014/05/21/effective-ntlm-slash-smb-relaying/\r\n\r\nBut one of the features that I've never seen anywhere else is in a tool called ZackAttack, which is a SMB Relay. Here is how it works:\r\n\r\n1. SMB or HTTP (NTLM) requests come in to a listener. This listener operates a few tricks to make the connections last longer and have multiple requests.\r\n2. During this time a SOCKS proxy is set up and any request that comes through with the username of a known (currently being \"relayed\" / delayed, request, will have it's password rewritten) and relayed to whatever host the attacker wants. There are a few tricks in the relay that allows for even multiple use of one relayed source/victim's set of credentials. (I don't think it sends back an access denied, it does a try again or something (maybe a connection dropped?).\r\n"}}