Unusual code found in wp-includes files: /wordpress.1/wp-includes/

Hellozers!

I had to make a few changes to my website so I downloaded and installed it locally.

I got the blank screen of doom, so I turned on debug mode and followed the parsing error to wp-includes>>users.php

I never messed with these files so I opened up a fresh version of the file and compared. Bellow is a snippet of my file followed by the original code.

I fixed the file only to find my wp-includes folder was peppered with /wordpress.1/wp-includes/

What’s going on here? Was I hacked? Did a plug-in alter these files?

function wp_dropdown_users( $args = '' ) {
	global $wpdb;
	$defaults = array(
		'show_option_all'../../wordpress.1/wp-includes/ => '', 'show_option_none'../../wordpress.1/wp-includes/ => '',
		'orderby'../../wordpress.1/wp-includes/ => 'display_name', 'order'../../wordpress.1/wp-includes/ => 'ASC',
		'include'../../wordpress.1/wp-includes/ => '', 'exclude' => '', 'multi' => 0,
		'show' => 'display_name', 'echo' => 1,
		'selected' => 0, 'name' => 'user', 'class' => '', 'blog_id' => $GLOBALS['blog_id'],
		'id' => '',
	);

This is what it should look like:

function wp_dropdown_users( $args = '' ) {
	global $wpdb;
	$defaults = array(
		'show_option_all' => '', 'show_option_none' => '',
		'orderby' => 'display_name', 'order' => 'ASC',
		'include' => '', 'exclude' => '', 'multi' => 0,
		'show' => 'display_name', 'echo' => 1,
		'selected' => 0, 'name' => 'user', 'class' => '', 'blog_id' => $GLOBALS['blog_id'],
		'id' => '',
	);