Nmap done: 1 IP address (1 host up) scanned in 5.58 seconds, # Requires root or enough permissions to use tcpdump, # Will listen for the first 7 packets of a null login, # Will sometimes not capture or will print multiple. Reconnecting with SMB1 for workgroup listing. result was NT_STATUS_NONE_MAPPED In the scenarios where there is a possibility of multiple domains in the network, there the attacker can use enumdomains to enumerate all the domains that might be deployed in that network. list List available commands on |_ Current user access: READ I create my own checklist for the first but very important step: Enumeration. -P, --machine-pass Use stored machine account password Enumerating Windows Domains with rpcclient through SocksProxy == Bypassing Command Line Logging This lab shows how it is possible to bypass commandline argument logging when enumerating Windows environments, using Cobalt Strike and its socks proxy (or any other post exploitation tool that supports socks proxying). queryuser Query user info Two applications start a NetBIOS session when one (the client) sends a command to call another client (the server) over, 139/tcp open netbios-ssn Microsoft Windows netbios-ssn. May need to run a second time for success. | RRAS Memory Corruption vulnerability (MS06-025) This command is made from LSA Query Security Object. SANS Penetration Testing | Plundering Windows Account Info via C$ Disk Default share It can be done with the help of the createdomuser command with the username that you want to create as a parameter. What permissions must be assigned to the newly created directories? A tag already exists with the provided branch name. As with the previous commands, the share enumeration command also comes with the feature to target a specific entity. samlookupnames Look up names --------------- ---------------------- # lines. The system operates as an application-layer network protocol primarily used for offering shared access to files, printers, serial ports, and other sorts of communications between nodes on a network. dfsadd Add a DFS share rpcclient $> netshareenum The polices that are applied on a Domain are also dictated by the various group that exists. if IPC$ share is enabled , and have anonymous access we can enumerate users through, SAMBA 3.x-4.x # vulnerable to linux/samba/is_known_pipename, SAMBA 3.5.11 # vulnerable to linux/samba/is_known_pipename, good script to use if none of scanner giving version for smb, # Requires root or enough permissions to use tcpdump, # Will listen for the first 7 packets of a null login, # Will sometimes not capture or will print multiple. | Comment: Remote Admin Sharename Type Comment Password Spraying & Other Fun with RPCCLIENT - Black Hills Information great when smbclient doesnt work, Rpcclient is a Linux tool used for executing client-side MS-RPC functions. There are numerous tools and methods to perform enumeration, we will be finding different types of information on SMB throughout the article. | A critical remote code execution vulnerability exists in Microsoft SMBv1 enumprinters Enumerate printers It can be used on the rpcclient shell that was generated to enumerate information about the server. As with the lsaenumsid, it was possible to extract the SID but it was not possible to tell which user has that SID. for all files), recurse: toggles recursion on (default: off), prompt: toggles prompting for filenames off (default: on), mget: copies all files matching the mask from host to client machine, Specially interesting from shares are the files called, by all authenticated users in the domain. New Folder (9) D 0 Sun Dec 13 05:26:59 2015 SMB allows you to share your resources to other computers over the network, version susceptible to known attacks (Eternal blue , wanna cry), Disabled by default in newer Windows version, reduced "chattiness" of SMB1. change_trust_pw Change Trust Account Password Workgroup Master Start by typing "enum" at the prompt and hitting <tab><tab>: rpcclient $> enum enumalsgroups enumdomains enumdrivers enumkey enumprivs enumdata enumdomgroups enumforms enumports enumtrust enumdataex enumdomusers enumjobs enumprinter. This information can be elaborated on using the querydispinfo. In this article, we were able to enumerate a wide range of information through the SMB and RPC channel inside a domain using the rpcclient tool. setdriver Set printer driver A null session is a connection with a samba or SMB server that does not require authentication with a password. | Anonymous access: platform_id : 500 SMB2 Windows Vista SP1 and Windows 2008, nmap -n -v -Pn -p139,445 -sV 192.168.0.101, smbclient -L \\$ip --option='client min protocol=NT1', # if getting error "protocol negotiation failed: NT_STATUS_CONNECTION_DISCONNECTED", # Will list all shares with available permissions, smbmap -u jsmith -p password1 -d workgroup -H 192.168.0.1, nmap --script smb-enum-shares -p 139,445 $ip, smbclient \\\\192.168.1.101\\C$ --option='client min protocol=NT1', smbclient \\\\192.168.1.101\\admin$ -U t-skid, # Connect with valid username and password, smbmap -R $sharename -H $ip -A $fileyouwanttodownload -q, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -s wwwroot -R -A '. RPC or Remote Procedure Call is a service that helps establish and maintain communication between different Windows Applications. Host is up (0.030s latency). netname: ADMIN$ In other words - it's possible to enumerate AD (or create/delete AD users, etc.) With an anonymous null session you can access the IPC$ share and interact with services exposed via named pipes. See the below example gif. Enum4linux is a Linux alternative to enum.exe and is used to enumerate data from Windows and Samba hosts. To enumerate a particular user from rpcclient, the queryuser command must be used. Password attack (Brute-force) Brute-force service password.