Hello,
before changing that icons, please go to Joomla configuration and turn editor to editor - none.
It is a custom html module with this content
Code:
<a href="http://www.facebook.com/hotthemes"><i class="fa fa-facebook"></i></a><a href="http://twitter.com/hot_themes"><i class="fa fa-twitter"></i></a><a href="https://plus.google.com/b/101865138405372995937/"><i class="fa fa-google-plus"></i></a><a href="http://www.linkedin.com/company/hotthemes"><i class="fa fa-linkedin"></i></a><a href="http://pinterest.com/hotthemes"><i class="fa fa-pinterest"></i></a>
and you can edit it as you want.
Best regards,
Nikola Mihajlovic
