It’s the Yakhont, aka Onyx. Russian built, yes.
Its things like that which make me glad I’m not in the Navy anymore... area denial weapons.
I know the Russians sold some to China along with Sovremenny destroyers that use them, and some to Syria (Bastion system).
Expect Russia to eventually provide them to Iran as an extended middle finger to the West over sanctions.
We haven’t poured (successfully) money into compact lasers and rail guns for nothing :-)