Download malwarebytes and run that

Give this a go - install to a memory stick and then boot from it.
I've managed to sort loads of machines out. M$ did good with this one

http://windows.microsoft.com/en-US/windows/what-is-windows-defender-offline

did have a go with malaware and it found magnipic.. removed it, but still got ads everywhere, i now found in chrome's add-on a magnipic there.. removed it.. will see now if its gone for good

Can you block it in your firewall?

nope.. doesnt exists anymore