clear_code.zip

<?php /** * 清理超长挂马代码的工具 * * 特点：支持超长代码的清理 * 用法： * 在本文件同目录下放置要清除的代码样本文件clear_code.txt (应只含清除代码样本) * 命令行下执行: clear_code 指定目录 */ if(!isset($argv[1]) or empty($argv[1])) die('not path!'); if(!is_dir($argv[1])) die($argv[1].' is not dir!'); if(!file_exists('clear_code.txt')) die('not find clear_code.txt'); $example_code = trim(file_get_contents('clear_code.txt')); if(empty($example_code)){ die('clear_code.txt is empty!'); } echo tool::clear_code($argv[1], $code); class tool{ static public $regex = ''; static public $select_ext = array('.htm','.html'); static public $find_num = 0; static public function clear_code($path, $example_code){ $start_code = str_replace('/','\/',quotemeta(substr($example_code, 0, 20))); $end_code = str_replace('/','\/',quotemeta(substr($example_code, -20))); self::$regex = '/'.$start_code.'.*'.$end_code.'/s'; return self::clear($path); } static public function clear($path){ $list = scandir($path); foreach($list as $f){ if($f!='.' && $f!='..'){ $filepath = $path."\\".$f; if(is_dir($filepath)){ self::clear($filepath); }else{ $file_ext = strrchr($f,'.'); if(in_array($file_ext, self::$select_ext)){ $content = file_get_contents($filepath); if(preg_match(self::$regex, $content)){ $new_content = preg_replace(self::$regex, '', $content); file_put_contents($filepath, $new_content); self::$find_num++; } } } } } return self::$find_num; } }//end class