Reece, I have come in late on this and someone else may have already covered - but the message you were getting is NOT genuine, it is a false claim caused by a driveby download, nothing to do with Filefront.
You have picked it up from somewhere without realising it ( which is by design), and it will pop up these lurid messages about infections you haven't got, trying to get you to by the product, which is a scam and a waste of money.
This link
http://news.bbc.co.uk/1/hi/technology/7779223.stm
tells you about scareware, and though the one you have may not be named here, it is of that class.Sorry if this is already dealt with - in a rush and no time to read all messages
Here is a very good anti-malware site that has removal instructs for this.
http://www.bleepingcomputer.com/malw...-antivirus-360. Hope it helps