Does it do more then disable your escape key and console button? That happens to me every time I join TnB...
It was only noticed about 3 days ago. Infact, it was created 4 days ago the virus, so it can't be for a while.
I joined the server the day he put it on and I had the virus ( it didn't seem to effect me but the file was there) anyone who has joined recently should look in garrysmod/garrysmod/lua/vgui and delete the abc file...