[tor-onions] Disabling "subdomains"

[shruub]

Hi,
as one of my hidden service's subdomains is currently being dos-ed, I 
would like to know if there is any way to disable the tor daemon just 
passing through all requests. I could also tell my reverse proxy to send 
a HTTP 444, but this is a little inconvinient. Afaik, the subdomain 
functionality isn't official, but I thought it could maybe still be 
possible.

Best,
shruub