This is the Cisco Support Community, a user forum where people ask and general users (other members of the public as well as Cisco partners and employees) answer technical questions.
This is not the right place to ask for official Cisco support. Also, Cisco is not an Internet Service Provider for anybody.
Cisco does provide secuirty intelleignece which is used in their products. However I checked kiewitcom and it is not classified as a spam or malware site. Its reputation is neutral to good.
https://talosintelligence.com/reputation_center/lookup?search=Kiewit.com
http://www.brightcloud.com/tools/url-ip-lookup.php
