A spam making the rounds purports to be a Youtube video.
Clicking on that link then redirects to a different site, youtube-s, which serves exploits to attempt to infect your system. Then, if your browser hasn?t completely crashed at that point, you may ultimately get redirected to the real YouTube, displaying some idiotic video (hence, possibly even helping to continue the infection, by having users forward the spam above):
We are giving away 'Black Panther' swag!
Four lucky readers will be taking home *Marvel*ous "Black Panther" prizes, including magazines autographed by the King of Wakanda himself! Giveaway ends Feb. 25, 2018.