后端开发|php教程
webshell,扫描器
后端开发-php教程
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<?php
/*
+--------------------------------------------------------------------------+
| Codz by indexphp Version:0.01 |
| (c) indexphp |
| |
+--------------------------------------------------------------------------+
*/
/*===================== 程序配置 =====================*/
$dir=cms; //设置要扫描的目录
$jumpoff=false;//设置要跳过检查的文件
$jump=safe.php|g; //设置要跳过检查的文件或者文件夹 $jumpoff=false 时此设置有效
$danger=eval|cmd|passthru;//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
$dir_num=0;
$file_num=0;
$danger_num=0;
/*===================== 配置结束 =====================*/
extract (GetHttpVars());
if ($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;
$message= " 文件数:".$file_num;
$message.= " 文件夹数：".$dir_num;
$message.= " 可疑文件数：".$danger_num;
$message.= " 执行时间：".$total;
echo $message;
exit();
}
function GetHttpVars() {//全局变量
$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)//遍历文件
{
global $danger ,$suffix ,$dir_num ,$file_num ,$danger_num;
$hand=@dir($dir) or die(文件夹不存在) ;
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, )or die(没有权限);
while(!feof($fp))
{
$str .= fgets($fp,1024);
}
fclose($fp);
if( preg_match_all ("/($danger)[ \r\n\t]{0,}([\[\(])/i",$str,$out))
{
echo "可疑文件：{$filename}
查看代码
删除
";
$danger_num++;
}
}
$file_num++;
}
}
function Edit()//查看可疑文件
{
global $filename;
$filename = str_replace("..","",$filename);
$file = $filename;
$content = "";
if(is_file($file))
{
$fp = fopen($file,"r")or die(没有权限);
$content = fread($fp,filesize($file));
fclose($fp);
$content = htmlspecialchars($content);
}
echo "$content\r\n";
exit();
}
function Delete()//删除文件
{
global $filename;
(is_file($filename))?($mes=unlink($filename)?删除成功:删除失败 查看权限):\;
echo $mes;
exit();
}
function Jump($file)//跳过文件
{
global $jump,$safearr;
if($jump != \)
{
foreach($safearr as $v)
{
if($v==\) continue;
if( eregi($v,$file) ) return true ;
}
}
return false;
}
?>
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