The so-called Nestor’s Chronicle records that three Scandinavian princes came to rule Russia in the early Middle Ages. The phrasing implies colonization rather than an ancestral relationship. Some of the Russian nobility did claim to come from one of them, Rurik.
“White Russians” is a curious term that you used. It could be a reference to the Belarus (”White Rus”) nation, closely related to the Russians, or maybe to the White Guard that resisted the communist revolution in 1918. It is also a sugary vodka drink that gives people a headache.
The Vikings did apparently come through "Russia" to the Black Sea back in the day.