PHP Web木马扫描器

"
    . " pass"
    . " "
    . " "
    . " "
    . ""
   .""; 
   exit; 
}elseif(isset($_POST['passchack'])&&$_POST['passchack']==$pass){ 
   $code=file_get_contents($_GET['readfile']); 
   echo"{$code}"; 
   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 "保存成功！点击返回"; 
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[$file])){ 
     echo "新增文件：".$file.""." 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))." 源码删除
"; 
    }else{ 
     if($log[$file] != $md5){ 
     echo "修改文件：".$file.""." 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))." 源码
"; 
    
     unset($log[$file]); 
     }else{ 
     unset($log[$file]); 
     } 
    } 
    } 
   } 
   if(count($log)>0){ 
    foreach($log as $file => $md5){ 
    echo "删除文件：".$file."
"; 
    } 
   } 
    } 
} 
} 
} 
    
//计算md5 
function 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 "可疑文件：{$filename}"." 创建时间：".date("Y-m-d H:i:s",filectime($filename))." 修改时间：".date("Y-m-d H:i:s",filemtime($filename))." 查看代码 删除
"; 
   $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 "$content\r\n"; 
exit(); 
} 
function Delete()//删除文件 
{ global $filename,$pass; 
if(empty($_POST['passchack'])){ 
    echo"
"
   . " pass"
   . " "
   . " "
   . " "
   . "
"
    .""; 
    exit; 
}elseif(isset($_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; 
} 
?> 
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