Blackmetal Bands Of Australia

You might want to check out:

Perth:
Pagan
Impact Winter
Funeral Death

Brisbane:
Astriaal
Catacomb
Spear of Longinus
Defiled

Sydney area:
Lord Kaos
Secratain
Anwariad
Dark Dominion
Vrag

Canberra:
Myrddraal

Melbourne:
Anarazel
Hellspawn
Anatomy
Gospel of the Horns