Whenever I'm programming in C++, after I run a new executable, Avast suspends it informing me that "not much is known" about the file and asking if I'd like to continue execution or terminate the process. It's done this to a few files I've downloaded from the web too. Sadly, I just got a virus. So how is it while it's so paranoid a virus can sneak through?
I could see it if Avast reported "not much is known about this file" but to categorize a virus as safe certainly is a large slip up.