php webshell扫描后门木马实例程序
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2022-04-02 10:27:50
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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哦,这个给大家找网站木马提供了很大的方便,有需要的朋友可参考。
代码如下 | 复制代码 |
/********************** php扫描后门 **********************/ 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 ' 特征 '.$path.' '; flush(); ob_flush();} else { if(!preg_match($exs,$name)) continue; if(filesize($path) > 10000000) continue; $fp = fopen($path,'r'); $code = fread($fp,filesize($path)); fclose($fp); if(empty($code)) continue; foreach($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 && $len echo ' 特征 '.$path.' ';flush(); ob_flush(); break; } } unset($code,$array); } } closedir($handle); return true; } function strdir($str) { return str_replace(array('\\','//','//'),array('/','/','/'),chop($str)); } echo ''; if(file_exists($_POST['dir']) && $_POST['exs']) { $dir = strdir($_POST['dir'].'/'); $exs = '/('.str_replace('.','\\.',$_POST['exs']).')/i'; echo antivirus($dir,$exs,$matches) ? ' 扫描完毕 ' : '扫描中断 ';} ?> |
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