Spammy wordpress backlinks?

Is anyone getting these for backlinks?

http://breadcrumbsinsoup.org/wp-login.php
http://www.e-business-monitor.org/wp-login.php
http://whatdotermiteslooklike.net/wp-login.php
http://www.creditcardrating.org/wp-login.php
http://depressionsigns.org/wp-login.php
http://nelachildrenscoalition.org/wp-login.php
http://fender-bassman.org/wp-login.php
http://www.deepeddy.org/wp-login.php

I have line after line of these weird wordpress links. Does anyone know why this is happening and how can I stop/report this?