php木馬webshell掃描器代碼_php執行個體

複製代碼 代碼如下:
/*
+--------------------------------------------------------------------------+
| Codz by indexphp Version:0.01 |
| (c) 2009 indexphp |
| http://www.indexphp.org |
+--------------------------------------------------------------------------+
*/
/*===================== 程式配置 =====================*/
$dir='cms'; //設定要掃描的目錄
$jumpoff=false;//設定要跳過檢查的檔案
$jump='safe.php|g'; //設定要跳過檢查的檔案或者檔案夾 $jumpoff=false 時此設定有效
$danger='eval|cmd|passthru';//設定要尋找的危險的函數 以確定是否木馬檔案
$suffix='php|inc';//設定要掃描檔案的尾碼
$dir_num=0;
$file_num=0;
$danger_num=0;
/*===================== 配置結束 =====================*/
extract (GetHttpVars());
if ($m=="edit") Edit();
if ($m=="del") Delete();
if ($check=='check')
{ $safearr = explode("|",$jump);
$start_time=microtime(true);
safe_check($dir);
$end_time=microtime(true);
$total=$end_time-$start_time;
$file_num=$file_num-$dir_num;
$message= " 檔案數:".$file_num;
$message.= " 檔案夾數：".$dir_num;
$message.= " 可疑檔案數：".$danger_num;
$message.= " 執行時間：".$total;
echo $message;
exit();
}
function GetHttpVars() {//全域變數
$superglobs = array(
'_POST',
'_GET',
'HTTP_POST_VARS',
'HTTP_GET_VARS');
$httpvars = array();
foreach ($superglobs as $glob) {
global $$glob;
if (isset($$glob) && is_array($$glob)) {
$httpvars = $$glob;
}
if (count($httpvars) > 0)
break;
}
return $httpvars;
}
function Safe_Check($dir)//遍曆檔案
{
global $danger ,$suffix ,$dir_num ,$file_num ,$danger_num;
$hand=@dir($dir) or die('檔案夾不存在') ;
while ($file=$hand->read() )
{
$filename=$dir.'/'.$file;
if (!$jumpoff) {
if(Jump($filename))continue;
}
if(@is_dir($filename) && $file != '.' && $file!= '..'&& $file!='./..')
{ $dir_num++;
Safe_Check($filename);
}
if (preg_match_all ("/\.($suffix)/i",$filename,$out))
{
$str='';
$fp = @fopen($filename,'r')or die('沒有許可權');
while(!feof($fp))
{
$str .= fgets($fp,1024);
}
fclose($fp);
if( preg_match_all ("/($danger)[ \r\n\t]{0,}([\[\(])/i",$str,$out))
{
echo "可疑檔案：{$filename}
查看代碼
刪除
";
$danger_num++;
}
}
$file_num++;
}
}
function Edit()//查看可疑檔案
{
global $filename;
$filename = str_replace("..","",$filename);
$file = $filename;
$content = "";
if(is_file($file))
{
$fp = fopen($file,"r")or die('沒有許可權');
$content = fread($fp,filesize($file));
fclose($fp);
$content = htmlspecialchars($content);
}
echo "$content\r\n";
exit();
}
function Delete()//刪除檔案
{
global $filename;
(is_file($filename))?($mes=unlink($filename)?'刪除成功':'刪除失敗 查看許可權'):'';
echo $mes;
exit();
}
function Jump($file)//跳過檔案
{
global $jump,$safearr;
if($jump != '')
{
foreach($safearr as $v)
{
if($v=='') continue;
if( eregi($v,$file) ) return true ;
}
}
return false;
}
?>

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