Exobyte (Pre-Augments)

Created by Brainiac, the Exobyte is a miniature nanite roughly the size of a flea. Capable of downloading terabytes of data, the nanite is capable of developing countermeasures for actions used against it.

Following data-retrieval exobytes are also capable of attacking in a swarm to digitise allocated targets or infect a target with an allocated virus.

Involvement
Breaking into Lex Luthor's Antartica-based laboratory, a single Exobyte downloaded 82% of Luthor's data on Magic, Metahumans and Metatechnology before it was captured. Its capture served as a lure for Luthor to meet and ally with Brainiac. However, following Luthor's victory over the Justice League and Brainiac's betrayal, the exobytes were released en-mass to attack and digitize Earth's population.

Some time later, Luthor and Batman manage to abduct some exobytes and use them in a plan to bestow a virus apon average civilians in order to make them superpowered in an attempt to create an army to stop Brainiac's invasion.