Thank yo Adam. I will register on the support system and raise a proper ticket.
For the record though, I'm on a small reseller Windows Helm account and ALL of my domains have had the default docs (index. and default. htm, asp, cfm etc) replaced in EVERY directory, including 'logs' which is below wwwroot.... this is what concerns me the most as it seems to of just spidered through your entire D : volume.
This includes one site which only has email and simple web services enabled. No PHP, scripting or Db's
bpcsupplies.co.uk if it helps you to track the account down in the meantime before I get a chance to register in the morning (not in office now)