An attacker can access the administration web interface of D-Link devices without any authentication and view/change its settings. The author of the post found the backdoor inside the firmware v1.13 for the DIR-100 revA. The same backdoor is found in many other DLink devices, Planex routers, based on the same flaw, are affected by the flaw. Backdoor was found in the code xmlset_roodkcableoj28840ybtide on Google and discovered traces of it in one Russian forum post.”]
Source: http://securityaffairs.co/wordpress/18645/hacking/d-link-backdoor.html