Altima
Altima is an Old God who is said to have existed far before the creation of mankind. According to ancient scribes, Altima existed as an entity whose sole purpose was to bring death and decay toward any living creature she would encounter. Of all the Old Gods, Altima meddled with humankind the most, the most prominent act of her involvement with mankind's state of decay was her creation of the virus, introducing the object into the mortal realm and leading to disease and death.
Traces of Altima's presence were detected by probes from UNTIL, who scoured the far reaches of the universe in a region known as The Decaying Realm. Upon discovering the existence of the probes, Altima tracked down the location of Earth and sought to bring decay to mankind once more, however, was stopped by Doctor Ka, who reasoned that the fate of mankind would be through wars and that without her intervention, mankind would tear themselves apart regardless from their history of violence. Satisfied with this, Altima vowed to not interfere with humankind's affairs, so long as Earth continued with its wars, and the battles between the superheroes and supervillains of the world.
It is through Altima's pact with Doctor Ka that the world cannot achieve true peace, as doing so would result in the Old God's return to terrorize mankind. Due to the cataclysmic scale of Altima's threat to the world, the Old God was designated by UNTIL as a Supercosmic Villain, and her existence kept strictly confidential from the public.