I've spoken to a BBS technician about this and I was told that it looks like it's a problem with the server or apache. It does not appear to be a virus but it's always safest NOT to download a file you didn't ask for. Hopefully this error will be cleared up quickly.
Unfortuanetly there isn't anything I can do about it, because it's a server issue but the host is in the process of fixing it.
Henry