Malicious perl script Post: 302992367

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Operating Systems Linux Debian Malicious perl script Post 302992367 by drysdalk on Friday 24th of February 2017 08:04:19 AM

02-24-2017

Registered User

Hi,

Ah, WordPress. So many times I've seen compromised sites and servers that began with an incorrectly-configured, inadequately-secured or out-of-date WordPress install. Seeing 'php-cgi' by itself isn't necessarily sinister. WordPress is PHP based, and so any page you access will certainly spawn a PHP process somehow.

If your server is running Plesk (and from the 'sw-engine-fpm' process in one of your earlier process lists I'm pretty sure it must be), then this is a fairly standard way for Plesk to deal with PHP requests. Any request for a page that needs PHP to handle it will result in a 'php-cgi' process being spawned by Plesk, if it's configured to handle PHP in its usual way.

But I'd definitely start with that WordPress install, in terms of a suspect. At a bare minimum ensure it's up-to-date, that all its plugins are up-to-date (and that they are all legitimate and not malicious or suspicious plugins), that all your WordPress users and admins are ones you actually expect to exist , that they all have good strong passwords set, and so on and so forth. Pay very close attention to anything that allows file uploads in particular. Having anything that allows uploads of any sort without a username and password being required is a disaster waiting to happen, pretty much.

drysdalk

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LEARN ABOUT PHP

apache_child_terminate

APACHE_CHILD_TERMINATE(3)						 1						 APACHE_CHILD_TERMINATE(3)

apache_child_terminate - Terminate apache process after this request

SYNOPSIS

       bool apache_child_terminate (void  )

DESCRIPTION

       apache_child_terminate(3)  will register the Apache process executing the current PHP request for termination once execution of PHP code is
       completed. It may be used to terminate a process after a script with high memory consumption has been run as memory will  usually  only	be
       freed internally but not given back to the operating system.

RETURN VALUES

	Returns  TRUE  if  PHP is running as an Apache 1 module, the Apache version is non-multithreaded, and the child_terminate PHP directive is
       enabled (disabled by default). If these conditions are not met, FALSE is returned and an error of level E_WARNING is generated.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.4.0	|						    |
       |	|						    |
       |	|  This function became  available  under  FastCGI. |
       |	| Previously,  it  was	supported only when PHP was |
       |	| installed as an Apache module.		    |
       |	|						    |
       +--------+---------------------------------------------------+
NOTES

       Note

	      This function is not implemented on Windows platforms.

SEE ALSO

       exit(3).

PHP Documentation Group 												 APACHE_CHILD_TERMINATE(3)