A pop up script keeps showing up on my computer, don't know what it is

Hi,
For about two weeks now I've noticed that something will pop up and immediately close itself in the timespan of a second. It seems like a popup script, and I've managed to catch a glimpse of it every now and then. All I can make out is "Allow" and "Deny". I'm worried that it might be a virus, because I have no idea what it is. I've restarted my computer and shut it off many times since the first time that I've noticed this happening, so I know it's not something that I am doing by accident, such as opening a file I downloaded. I'm really confused as to what it is! Please help out!
Thanks!

Have Little Snitch installed? http://antivirus.about.com/od/macantivirusreviews/fr/Little-Snitch-For-Mac.htm
Turn off the Firewall in System Preferences > Security & Privacy (or just Security) > Firewall.

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Hi
I am sorry to see you are having problems
I suggest you contact the forum mods they should be able to get this problem sorted for you this is a link to them http://bt.custhelp.com/app/contact_email/c/4951
They normally reply by email or phone directly to you within 3/5 working days they will take personal ownership of your problem until resolved and will keep you informed of progress
They are a UK based BT specialist team who have a good record at getting problems solved
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A pop up script keeps showing up on my computer, don't know what it is

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