PHP Web Trojan Scanner-PHP Tutorial-php.cn

PHP Web Trojan Scanner

WBOY

Release： 2016-07-25 08:42:18

Original

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header('content-type:text/html;charset=gbk');
set_time_limit(0);//Prevent timeout
/**
*
* Enhanced version of php directory scanning monitoring
*
* @version 1.0
*
The following variables need to be set manually before use
*
**/
/*== =================== Program configuration=====================*/
$pass="test ";//Set password
$jkdir="."; //Set the directory for monitoring and scanning. The current directory is '.' and the upper-level directory is '..'. You can also set an absolute path without adding a slash after it. , the default is the current directory
$logfilename="./m.log";//Set the path to store the log, which can be placed anywhere
$exclude=array('data','images');//Exclude the directory
$danger='eval|cmd|passthru|gzuncompress';//Set the dangerous function to be found to determine whether it is a Trojan file
$suffix='php|inc';//Set the suffix of the file to be scanned
/*== =================== End of configuration=====================*/
$filename=$ _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;
$message= "Number of files:".$file_num;
$message.= " Number of folders: ".$jkdir_num;
$message.= " Number of suspicious files: ".$danger_num;
$message.= " Execution time: ".$total;
echo $message;
}else{
if ($_GET['m']=="del") Delete();//Process file deletion
//Read file content
if(isset($_GET['readfile'])){
//Output view Password, after the password is verified correctly, the file content will be output
if(empty($_POST['passchack'])){
echo"
"
. " 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){
//Save the current file md5 to the log file
@unlink(M_LOG);
file_put_contents(M_LOG,serialize($file_list));
echo "Save successfully! Click to return";
exit;
}
if(empty($log)){
echo "No log file has been created yet! Click [Save Current] to create a log file! ";
}else{
if($file_list==$log){
echo "No changes have been made to this folder!";
}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)[ rnt]{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 "$contentrn";
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)?'Delete successfully': 'Failed to delete view permission'):'';
echo $mes;
exit();
}else{
echo 'Wrong password! ';
exit;
}
}
function Jump($file)//Skip file
{
global $jump,$safearr;
if($jump != '')
{
foreach($safearr as $ v)
{
if($v=='') continue;
if( eregi($v,$file) ) return true ;
}
}
return false;
}
?>
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