Wordfence is throwing the following error:
WordPress core file modified: wp-content/plugins/hello.php
Filename: wp-content/plugins/hello.php
File type: Core
Issue first detected: 7 hours 55 mins ago.
Severity: Critical
Status New
This WordPress core file has been modified and differs from the original file distributed with this version of WordPress.When viewing the compare, Wordfence is stating this:
Filename: wp-content/plugins/hello.php
File type: WordPress Core File
The Original Version of the file
8 Plugin URI: http://wordpress.org/plugins/hello-dolly/
The Modified Version on your WordPress system
8 Plugin URI: http://wordpress.org/extend/plugins/hello-dolly/
That is wrong though. I just downloaded a fresh copy of Hello Dolly to verify that. It appears as though the copy of Hello Dolly that ships with 3.6 is different from the downloadable copy, even though they have the same version number.
-Michael