Mysterious bio/nano-tech virus/spore/bacteria

The existence of this dingus is only a rumor among the scientists of the colonies. They have found something that can only be described as a strange mixture of biological engineering and nano-technology. It pervades the atmosphere of Mars.

Created by the Wyrdos, this bug works in conjunction with their Pylons to reanimate dead bodies. Its original intention was to give the proto-humans a labor workforce to work around having to use slaves (which would require significantly more upkeep and resources). The Pylons have since shut down to varying degrees of function, leaving the reanimated bodies wandering without a central nexus controlling them.