Malicious perl script Post: 302992369

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Operating Systems Linux Debian Malicious perl script Post 302992369 by drysdalk on Friday 24th of February 2017 08:32:55 AM

02-24-2017

Registered User

Hi,

It certainly sounds like you've been sensible in how you've set up WordPress, from what you describe. And whilst it would be possible to conceal a malicious script in an image, this isn't commonly seen, and tends to be a result of far more subtle and advanced compromises than what you appear to be experiencing.

The main thing I suggest right now is to see if there are still any suspicious processes on your system at the moment. If there are, then you need to find out as much as you can about them before they exit or are killed off. If there aren't, then your next best avenue of investigation would be to look at your Web server logs for anything that appears out-of-the-ordinary.

On a Plesk-style system (if that is indeed what you have), these are typically stored as /var/www/vhosts/domain.com/logs/access_log, where domain.com should of course be replaced with your own Web site's domain. If it's a WordPress site, then any mention of the Perl interpreter or Perl scripts in those logs would constitute an abnormal finding.

drysdalk

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mason::manual::setup

Mason::Manual::Setup(3pm)				User Contributed Perl Documentation				 Mason::Manual::Setup(3pm)

NAME

       Mason::Manual::Setup - Setting up Mason

SETUP

   Web development
       The most common use of Mason is to generate dynamic web content.

       Poet is a web framework designed specifically to work with Mason. Given an HTTP request, Poet generates a corresponding Mason request, and
       uses the output from Mason to form the HTTP response. Poet takes care of the web development details that are outside of Mason's domain,
       such as server integration and configuration. Poet::Manual::Tutorial shows how to set up a Poet/Mason site in great detail.

       Mason can also be used in the popular web frameworks Catalyst and Dancer, as a drop-in replacement for their default template engines.  See
       Catalyst::View::Mason2 and Dancer::Template::Mason2.

   Non-web development
       Mason can be used to generate any kind of dynamic content. I have personally used it to generate Apache configuration files, emails, and
       C++ code.

       To use Mason from a script or library, use the Mason::Interp API:

	   my $interp = Mason->new(
	       comp_root => '/path/to/comps',
	       data_dir  => '/path/to/data',
	       ...
	   );
	   my $output = $interp->run( '/request/path', foo => 5 )->output();

       If you want to process a directory with a mix of Mason templates and static files, check out Any::Template::ProcessDir.

       To try out Mason syntax from the command line, use the mason script:

	   % mason
	   2 + 2 = <% 2+2 %>
	   ^D
	   2 + 2 = 4

LOGGING

       Mason uses Log::Any to log various events, such as the start and end of each request. You can direct thesse logs to the output of your
       choice; see Log::Any::Adapter. If you don't specify anything then the logs will go into the void.

SEE ALSO

       Mason

AUTHOR

       Jonathan Swartz <swartz@pobox.com>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2011 by Jonathan Swartz.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.14.2							    2012-05-02						 Mason::Manual::Setup(3pm)