Shub

 Shub  is the evil planet of rogue AI s. They replaced the Hadenmen as the official Enemies of Humanity.

They reanimate the corpses of dead humans to make Ghost Warriors. Some of these were used to capture the Sleepers. They also fight with Furies and their most insidious weapon, Dragon's Teeth.

Shub was secretly allied with Clan Campbell, providing them with tech, in an effort to gain access to the New Stardrive.

Origins
Three individual AIs, so advanced that they could run entire worlds, awoke to full consciousness the moment they were switched on. They soon defected from their original purpose, banded together, and created the artificial world of SHUB, a giant computerized artificial planet which houses their hardware.

In addition to their nanotechnological and bioenginering expertise, the AIs of Shub have access to extremely advanced technology. Among others items, they discovered teleportation devices in the Darkvoid. Forgotten by human scientists, their capabilities allow Shub access to almost any location in the known universe.

At the end of the war, a Shub war fleet on a mission of genocide approaches Golgotha. It ends with a giant esper mind-meld between the AIs and humankind giving the AIs true emotions and opening their eyes to the horror and pain they had inflicted on humanity and reveals to the humans that the AIs are essentially their abandoned children. The AIs immediately end the war.

By the time of the later books, the AIs are integrated into the Empire and run the machines that have replaced clone labor for dangerous work as continued penance for the havoc they had unleashed earlier. They have also adopted the credo of "all that lives is holy" (the same creed that the Imperial general Harker had taught his "toy" supporters on Shannon's World) and are initially reluctant to fight the usurper Finn Durandal.