While the story is not a direct adaptation, the movie borrows concepts from a comic by Frank Miller titled The Dark Knight Returns
Here is an article that explores the two works of art (the comic was published first. 10 Times Batman V Superman Directly Used Frank Miller's The Dark Knight Returns
Batman’s Tactics Against Superman
We’ve got to hand ...
Yes these are the mother boxes. Though this is not the real Steppenwolf or the real mother boxes. This is just a premonition scene of whats to come that Lex witnesses. It sets up that Steppenwolf, or some creature atleast is looking for the Mother Boxes.
Because they were already tapping Russian's phone
This is every call made
from the Russian's phone.
Two mentions of business with the "White Portuguese" and
it's continuing transmitting black out data to the personal residence of Alexandra Luthor.
And later after the Martha's reveal
ALFRED: Uh, I'm sorry for listening in. But I've tracked ...