php webshell扫描后门木马实例程序
本文章来给大家介绍一个php webshell扫描后门木马实例程序,这个可以扫描你网站上的木马程序,这个给大家找网站木马提供了很大的方便.
php webshell扫描后门木马实例程序代码如下:
- <?php
-
-
-
- error_reporting(E_ERROR);
- ini_set('max_execution_time',20000);
- ini_set('memory_limit','512M');
- header("content-Type: text/html; charset=gb2312");
- $matches = array(
- '/function\_exists\s*\(\s*[\'|\"](popen|exec|proc\_open|system|passthru)+[\'|\"]\s*\)/i',
- '/(exec|shell\_exec|system|passthru)+\s*\(\s*\$\_(\w+)\[(.*)\]\s*\)/i',
- '/((udp|tcp)\:\/\/(.*)\;)+/i',
- '/preg\_replace\s*\((.*)\/e(.*)\,\s*\$\_(.*)\,(.*)\)/i',
- '/preg\_replace\s*\((.*)\(base64\_decode\(\$/i',
- '/(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*(base64\_decode|str\_rot13|gz(\w+)|file\_(\w+)\_contents|(.*)php\:\/\/input)+/i',
- '/(eval|assert|include|require|include\_once|require\_once|array\_map|array\_walk)+\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER|SESSION)+\[(.*)\]\s*\)/i',
- '/eval\s*\(\s*\(\s*\$\$(\w+)/i',
- '/(include|require|include\_once|require\_once)+\s*\(\s*[\'|\"](\w+)\.(jpg|gif|ico|bmp|png|txt|zip|rar|htm|css|js)+[\'|\"]\s*\)/i',
- '/\$\_(\w+)(.*)(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*\$(\w+)\s*\)/i',
- '/\(\s*\$\_FILES\[(.*)\]\[(.*)\]\s*\,\s*\$\_(GET|POST|REQUEST|FILES)+\[(.*)\]\[(.*)\]\s*\)/i',
- '/(fopen|fwrite|fputs|file\_put\_contents)+\s*\((.*)\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\](.*)\)/i',
- '/echo\s*curl\_exec\s*\(\s*\$(\w+)\s*\)/i',
- '/new com\s*\(\s*[\'|\"]shell(.*)[\'|\"]\s*\)/i',
- '/\$(.*)\s*\((.*)\/e(.*)\,\s*\$\_(.*)\,(.*)\)/i',
- '/\$\_\=(.*)\$\_/i',
- '/\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\(\s*\$(.*)\)/i',
- '/\$(\w+)\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\s*\)/i',
- '/\$(\w+)\(\$\{(.*)\}/i'
- );
- function antivirus($dir,$exs,$matches) {
- if(($handle = @opendir($dir)) == NULL) return false;
- while(false !== ($name = readdir($handle))) {
- if($name == '.' || $name == '..') continue;
- $path = $dir.$name;
- if(is_dir($path)) {
- if(is_readable($path)) antivirus($path.'/',$exs,$matches);
- } elseif(strpos($name,';') > -1 || strpos($name,'%00') > -1 || strpos($name,'/') > -1) {
- echo '<p>特征 <input type="text" style="width:218px;" value="解析漏洞"> '.$path.'</p>'; flush(); ob_flush();
- } else {
- if(!preg_match($exs,$name)) continue;
- if(filesize($path) > 10000000) continue;
- $fp = fopen($path,'r');
- $code = fread($fp,filesize($path));
- fclose($fp);
- if(emptyempty($code)) continue;
- foreach($matches as $matche) {
- $array = array();
- preg_match($matche,$code,$array);
- if(!$array) continue;
- if(strpos($array[0],"\x24\x74\x68\x69\x73\x2d\x3e")) continue;
- $len = strlen($array[0]);
- if($len > 10 && $len < 1500) {
- echo '<p>特征 <input type="text" style="width:218px;" value="'.htmlspecialchars($array[0]).'"> '.$path.'</p>';
- flush(); ob_flush(); break;
- }
- }
- unset($code,$array);
- }
- }
- closedir($handle);
- return true;
- }
- function strdir($str) { return str_replace(array('\\','//','//'),array('/','/','/'),chop($str)); }
- echo '<form method="POST">';
- echo '<p>路径: <input type="text" name="dir" value="'.($_POST['dir'] ? strdir($_POST['dir'].'/') : strdir($_SERVER['DOCUMENT_ROOT'].'/')).'" style="width:398px;"></p>';
- echo '<p>后缀: <input type="text" name="exs" value="'.($_POST['exs'] ? $_POST['exs'] : '.php|.inc|.phtml').'" style="width:398px;"></p>';
- echo '<p>操作: <input type="submit" style="width:80px;" value="scan"></p>';
- echo '</form>';
- if(file_exists($_POST['dir']) && $_POST['exs']) {
- $dir = strdir($_POST['dir'].'/');
- $exs = '/('.str_replace('.','\\.',$_POST['exs']).')/i';
- echo antivirus($dir,$exs,$matches) ? '<p>扫描完毕</p>' : '<p>扫描中断</p>';
- }
- ?>