垃圾代码文件

Question

就在最近，我所有的PHP文件已经制定了一些垃圾代码在每个文件的开头，我将粘贴文件在最后给你看。我从清理这个代码的任何文件停止工作或有一些重大问题。请帮帮忙，下面的文件是用于添加按钮我想代码，如果我用这个文件就是那么所有作品，如果我删除的垃圾代码，然后将停止工作

<?php $azebdqinoq = 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NULL); 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$azebdqinoq=$ghyzwmwujj-1; ?><?php include_once("php_includes/check_login_status.php"); 

Answer 1

这是不可能的，你的代码自行开发垃圾代码。您的网站遭到黑客入侵。您需要更新您正在使用的操作系统和/或CMS。

Answer 2

这是恶意软件被安装在您的Web服务器软件，可开发投入你的代码。 在某个地方，有一个不断请求的脚本会覆盖php文件和很可能含有恶意代码的HTML文件。 我建议你更新所有安装的软件，并请求你的ISP最近几周的日志文件找到泄漏。

Answer 3

这是恶意代码。很可能你运行的是Wordpress或Joomla！网站，不是吗？ ;-) 某处（在一个脚本中）我猜这里有一个带有base64_decode函数的“模糊”代码块。通常这个恶意代码是base64编码的几次，所以它可以“隐藏”它正在做的事情。

删除您的整个网站，并从头开始设置它。安装安全插件并确保始终应用最新的修补程序。

有关如何工作的说明，请参见http://blog.securestate.com/decoding-php-backdoor/。

Answer 4

这不是“垃圾”，即一个恶意软件通过漏洞（即过时的代码等）安装在您的服务器上。正如你可以从下面的链接看到，该漏洞可能与WordPress的MailPoet插件，但很多可能存在的漏洞可能导致同样的结果

怎么办：已在服务器经过安全专业人士看了看。

什么就足够：

• 从干净的备份恢复所有文件，并升级所有相关软件到最新版本和安全补丁级别（最好是如果可能的话做离线）。
• 禁用所有插件或软件包其中有一个出色的漏洞报告并没有提供缓解（你必须检查相关的网站和邮件列表）。
• 验证所有文件的时间戳服务器上寻找“团块”（大量的文件，特别是如果不相关，大约在同一修改日期和时间）和可疑时间戳（上传或网站管理员的工作时间以外的修改如PHP文件） ，或者当它们不应该有修改的文件（例如系统文件等），或者文件不是它们应该在的地方（数据目录中的可执行文件），或者无论如何看起来可疑（例如，随机名称）。
• 检查网络服务器日志的可疑活动，尤其是涉及IP地址31.184.192.250或同级（见下文）。
• 还检查其他可能的日志，如果存在：邮件服务器，SSH，登录，FTP。

半技术性的东西和琐事：我已经解密的代码 - 混淆后几层，核心似乎是一个近亲，可能是完全一样的，this。在2013年圣诞节前夕，当网站管理员called for help出现时，它似乎首次出现在中文网站上。

命令与控制服务器的域名注册于2013年11月，位于俄罗斯圣彼得堡。这些URL显然没有回应（但是内部检查可能会发现“原始”恶意软件和被破坏的恶意软件调查协议，并拒绝回应）。

恶意软件的明文脚本可以在GitHub上找到here（不用说，谨慎行事）。