Well, I doubt that they would show such a doujutsu, so early in the anime. It could be anything, even the supreme doujutsu you speak of. However, most likely, it might just be anger or something. Nonetheless, we do not know a lot about Kabuto, so we have to wait for the future. Because as most of us may know, Kabuto added some of Orochimaru's DNA into him; changing his whole appearance and will soon enough change into Orochimaru himself. So, maybe his latent past shall make itself known. Also, maybe it could be better than the rinnegan, sharingan, and byakugan combined.
However I doubt it.