Hi, We have a malware adware virus which we don't know the name of, which is making it more difficult to get rid of. Basically certain words eg 'hotel, 'phone', will be highlighted on a web page and if the cursor hovers over a pop-up ad appears eg for Apple. We have run numerous anti-virus scans including Spy Hunter, Avast, Hitman Pro and Bit Defender, but while it sometimes temporarily disappears it ends up coming back.
Does anyone know what this virus is, and how to permanently get rid of it please?
Apologies if there is already a discussion about this but as we don't know the name it is difficult to search.
We have a laptop with Windows 7 and use Firefox.
Many thanks in advance.

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