In the theology of the Garou the Wyrm is one of the higher Celestines. The Wyrm's purpose is the cleansing and rectification of Creation, furthering its descent into Entropy. He achieves this by eliminating that which the Wyld creates and the Weaver structures.
According to Garou theology, the Wyrm was the second member of the Triat to go insane. Once the Weaver went mad and began encasing everything in Webs, the Wyrm was progressively constrained until he was driven insane, hellbent on destroying everything. Consequently, the Wyrm is now a spirit of destruction, chaos, darkness and corruption, the essence of everything the Garou oppose.
The Wyrm counts many different creatures in its employ. Some serve knowingly, some unknowingly. But their actions all serve to bring the Apocalypse ever closer and drive the Garou ever closer to extinction. As such, all creatures who cause misery, depravity and destruction, either willingly or unwillingly, knowingly or unknowingly, are servants of the Wyrm and are considered deserving of death and damnation by the Gorou.
Banes: These foul spirits of the Wyrm are thankfully usually confined to the spirit world. Unfortunately, some of the strongest can possess mortal hosts and use them to affect the real world. Even strong men can be overwhelmed and made the puppet of a Bane. No man or beast is safe from these spirits of pure evil and corruption. When confronted however, Banes will frequently give up their mortal shells and burst forth in the full horrifying glory, displaying razor sharp fangs, tentacles, hundred of faceted eyes, or a thousand other horrors, each worse than the last.
Black Spiral Dancers: The Wyrm's greatest triumph, the Dancers are foul twisted reflections of the Garou. Just like the Garou, they consort with spirits and can gain gifts from them, except they gain their gifts from Banes. Everything the Garou do, they do in service to the Wyrm. They are fond of capturing normal Garou and torturing them until they too become Black Spiral Dancers.
Fomori are created by binding a bane into a mortal host, either a human or animal. However, these are less powerful spirits than most Banes, so are more firmly bound to the flesh of their hosts, producing much more obvious deformities. Fomori are usually created by Pentex.
Pentex is a shadow corporation with its fingers is every pie it can think of. It taints everything it touches, all beneath a veneer of 'business as usual'. Oil spills are just a 'part of business' not part of a master plan to corrupt the world. Violent video games and movies are there just to satisfy the demands of customers, not to corrupt the hearts and minds of the young. Pharamceuticals with soul crushing side effects are hailed as miracle cures. Pentex has one purpose: bring on the Apocalypse and then step in as the savior, to be church and corporation all in one.
The 7th Generation: Perhaps the worst of all the factions of the Wyrm, the 7th Generation was a cult of knowing human servants of the Wyrm. They defiled children and sacrificed them to dark gods to achieve power for themselves. Their organization has been broken however, and there are only a few scattered survivors now. The Garou, led by King Albrecht, worked together for once to eliminate this vile cult... but if they are not wary, it may reform soon enough.
Vampires: The descendants of Caine are creatures of the Wyrm in that they are creatures of darkness cursed by God to feed on the blood of humans. Regardless of a vampire's Path of Enlightenment, the Garou will sense the taint of the Wyrm within any vampire they encounter.
Demons: The Fallen are creatures of the Wyrm in that they are creatures condemned by God who now hail from the Abyss.