PHP Web木马扫描器增强版

‍<?phpheader('content-type:text/html;charset=gbk');set_time_limit(0);//防止超时/**** php目录扫描监控增强版** @version 1.0*下面几个变量使用前需要手动设置***//*===================== 程序配置 =====================*/$pass="test";//设置密码$jkdir="."; //设置监控扫描的目录，当前目录为'.'，上一级目录为'..'，也可以设置绝对路径，后面不要加斜杠，默认为当前目录$logfilename="./m.log";//设置存储log的路径，可以放置在任意位置$exclude=array('data','images');//排除目录$danger='eval|cmd|passthru|gzuncompress';//设置要查找的危险的函数 以确定是否木马文件$suffix='php|inc';//设置要扫描文件的后缀/*===================== 配置结束 =====================*/$filename=$_GET['filename'];$check=$_GET['check'];$jumpoff=false;$url = $_SERVER['PHP_SELF'];$thisfile = end(explode('/',$url));$jump="{$thisfile}|".implode('|',$exclude);$jkdir_num=$file_num=$danger_num=0;define('M_PATH',$jkdir);define('M_LOG',$logfilename);if ($check=='check'){$safearr = explode("|",$jump);$start_time=microtime(true);safe_check($jkdir);$end_time=microtime(true);$total=$end_time-$start_time;$file_num=$file_num-$jkdir_num;$message= " 文件数:".$file_num;$message.= " 文件夹数：".$jkdir_num;$message.= " 可疑文件数：".$danger_num;$message.= " 执行时间：".$total;echo $message;}else{if ($_GET['m']=="del") Delete();//处理文件删除//读取文件内容if(isset($_GET['readfile'])){//输出查看密码，密码校验正确以后输出文件内容if(empty($_POST['passchack'])){   echo"<form id=\"form1\" name=\"form1\" method=\"post\">"    . " <label>pass"    . " <input type=\"text\" name=\"passchack\" />"    . " </label>"    . " <input type=\"submit\" name=\"Submit\" value=\"提交\" />"    . "</form>"   ."";   exit;}elseif(isset($_POST['passchack'])&&$_POST['passchack']==$pass){   $code=file_get_contents($_GET['readfile']);   echo"<textarea name=\"code\" cols=\"150\" rows=\"30\" id=\"code\" style='width:100%;height:450px;background:#cccccc;'>{$code}</textarea>";   exit;}else{   exit;}}else{record_md5(M_PATH);if(file_exists(M_LOG)){        $log = unserialize(file_get_contents(M_LOG));}else{        $log = array();}if($_GET['savethis']==1){//保存当前文件md5到日志文件@unlink(M_LOG);file_put_contents(M_LOG,serialize($file_list));echo "<a href='scandir.php'>保存成功！点击返回</a>";exit;}if(empty($log)){echo "当前还没有创建日志文件！点击[保存当前]创建日志文件！";}else{if($file_list==$log){   echo "本文件夹没有做过任何改动！";}else{   if(count($file_list) > 0 ){    foreach($file_list as $file => $md5){    if(!isset($log[$file])){     echo "新增文件：<a href={$file} target='_blank'>".$file."</a>"." 创建时间：".date("Y-m-d H:i:s",filectime($file))." 修改时间：".date("Y-m-d H:i:s",filemtime($file))." <a href=?readfile={$file} target='_blank'>源码</a><a href='?m=del&filename={$file}' target='_blank'>删除</u></a><br />";    }else{     if($log[$file] != $md5){     echo "修改文件：<a href={$file} target='_blank'>".$file."</a>"." 创建时间：".date("Y-m-d H:i:s",filectime($file))." 修改时间：".date("Y-m-d H:i:s",filemtime($file))." <a href=?readfile={$file} target='_blank'>源码</a><br />";     unset($log[$file]);     }else{     unset($log[$file]);     }    }    }   }   if(count($log)>0){    foreach($log as $file => $md5){    echo "删除文件：<a href={$file} target='_blank'>".$file."</a><br />";    }   }    }}}}//计算md5function record_md5($jkdir){        global $file_list,$exclude;        if(is_dir($jkdir)){                $file=scandir($jkdir);                foreach($file as $f){                        if($f!='.' && $f!='..' && !in_array($f, $exclude)){                                $path = $jkdir.'/'.$f;                                if(is_dir($path)){                                        record_md5($path);                                }else{                                        $file_list[$path]=md5_file($path);                                }                        }                }        }}function Safe_Check($jkdir)//遍历文件{global $danger ,$suffix ,$jkdir_num ,$file_num ,$danger_num;) or die('文件夹不存在') ;while ($file=$hand->read()){    $filename=$jkdir.'/'.$file;    if (!$jumpoff) {   if(Jump($filename))continue;    }    if(@is_dir($filename) && $file != '.' && $file!= '..'&& $file!='./..')    {   $jkdir_num++;    Safe_Check($filename);    }    if (preg_match_all ("/\.($suffix)/i",$filename,$out))    {   $str='';   $fp = @fopen($filename,'r')or die('没有权限');   while(!feof($fp))   {   $str .= fgets($fp,1024);   }   fclose($fp);   if( preg_match_all ("/($danger)[ \r\n\t]{0,}([\[\(])/i",$str,$out))   {   echo "<font color='green' style='font-size:14px'>可疑文件：{$filename}</font>"." 创建时间：".date("Y-m-d H:i:s",filectime($filename))." 修改时间：".date("Y-m-d H:i:s",filemtime($filename))." <a href='?readfile={$filename}' target='_blank'><u>查看代码</u></a> <a href='?m=del&filename=$filename' target='_blank'>删除</u></a><br>";   $danger_num++;   }    }    $file_num++;}}function Edit()//查看可疑文件{global $filename;$filename = str_replace("..","",$filename);$file = $filename;$content = "";if(is_file($file)){    $fp = fopen($file,"r")or die('没有权限');    $content = fread($fp,filesize($file));    fclose($fp);    $content = htmlspecialchars($content);}echo "<textarea name='str' style='width:100%;height:450px;background:#cccccc;'>$content</textarea>\r\n";exit();}function Delete()//删除文件{ global $filename,$pass;if(empty($_POST['passchack'])){    echo"<form id=\"form1\" name=\"form1\" method=\"post\">"   . " <label>pass"   . " <input type=\"text\" name=\"passchack\" />"   . " </label>"   . " <input type=\"submit\" name=\"Submit\" value=\"提交\" />"   . "</form>"    ."";    exit;}elseif(isset($_POST['passchack'])&&$_POST['passchack']==$pass){   (is_file($filename))?($mes=unlink($filename)?'删除成功':'删除失败 查看权限'):'';   echo $mes;   exit();}else{   echo '密码错误！';   exit;}}function Jump($file)//跳过文件{global $jump,$safearr;if($jump != ''){    foreach($safearr as $v)    {   if($v=='') continue;   if( eregi($v,$file) ) return true ;    }}return false;}?><a href="scandir.php">[查看文件改动]</a>|<a href="scandir.php?savethis=1">[保存当前文件指纹]</a>|<a href="scandir.php?check=check">[扫描可疑文件]</a>