It's ok. It's caused by csThor's pic.

It originated from a website that has been noted as "suspicious" but, otherwise, is perfectly safe and malware free. I used to get the same from all of Ataros' links as well as Comodo DNS was obsessed with the idea that Ataros, far from trying to help me run CloD in a satisfactory manner, was actually an evil genius hell bent on bringing down the entire internet.