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Full Discussion: Malicious perl script
Operating Systems Linux Debian Malicious perl script Post 302992395 by drysdalk on Friday 24th of February 2017 11:33:08 AM
Old 02-24-2017
Hi,

I suspect these are two different issues. So far you have seen evidence of attempted brute-forcing of your WordPress logins, and you also saw a Perl script establishing a variety of outbound SMTP connections back at the very start of this thread.

It is entirely possible that the two are related, but equally they may not be. There's always a steady trickle of would-be brute-forcing and exploit scanning in the logs of pretty much every Web server on the Internet, more or less. If your WordPress installation is genuinely secure, these should be nothing to worry about. More sinister is the Perl script.

If in the output of ps and top right now you're not able to see any errant Perl scripts, and if there is nothing Perl-related in any of your Web logs, then there's not much more you can do at this point to track down that Perl script.

What you can say for sure is that your server was clearly running an unexpected Perl script that appeared to be establishing a variety of outbound SMTP connections, and it must have come from somewhere. And if that somewhere wasn't you, then you do definitely have a security issue you still need to get to the bottom of.
 

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Web::Simple::Deployment(3pm)				User Contributed Perl Documentation			      Web::Simple::Deployment(3pm)

NAME
Web::Simple::Deployment - various deployment options DESCRIPTION
This file documents common deployment methods for Web::Simple. If you feel one is missing, please ask in the IRC channel and we'll work with you to add it. CGI
The most basic deployment option is as a CGI script loading and running your Web::Simple-module: #!/usr/bin/env perl use Your::Web::Simple::App; Your::Web::Simple::App->run_if_script; Save that as script.cgi and your web server will handle it correctly. Plack-Server This works in with exactly the same code as CGI deployment. However instead of letting your web server load script.cgi, you run this on the command line: plackup script.cgi Self-contained CGI Sometimes your app is so small that you have only one or two tiny classes that you want to run as a CGI script. Web::Simple offers a helpful mechanism to achieve that. #!/usr/bin/env perl use Web::Simple 'HelloWorld'; # enables strictures and warnings for the file # additionally, HelloWorld is upgraded to a # Web::Simple application { package HelloWorld; sub dispatch_request { sub (GET) { [ 200, [ 'Content-type', 'text/plain' ], [ 'Hello world! It is a fine ' . HelloWorld::Helper->day ] ] }, sub () { [ 405, [ 'Content-type', 'text/plain' ], [ 'Method not allowed' ] ] } } } { package HelloWorld::Helper; use DateTime; sub day { return DateTime->now->day_name; } } HelloWorld->run_if_script; AUTHORS
See Web::Simple for authors. COPYRIGHT AND LICENSE
See Web::Simple for the copyright and license. perl v5.14.2 2012-05-07 Web::Simple::Deployment(3pm)
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