I got connection failed too, like some others.
I moved to the russian pool evil.ru/site/mining and it works with my lyra-thing. There's not a lot of hash now so you are welcome.
OR gimme another pool that works, also fine for me

I think this one : http://www.btcsatoshi.com/

But I don't see that part (I used to be better at this).
I'm not sure if it's that site but I was on it at the time when the popup appeared, and don't have any others in my history. 

I also just got the Avast popup of Tri-version. So it's not gone yet ?
Damn :s