OK, so while burning an image to a disc, my antivirus pops up and says that it needs to block this 'thing' (not typing full name). I block it and either it got through somehow or part of it got through, because I see a new entry in the start-up files, labelled with its name.
I search online for what the heck it is and notice that my default search provider has changed from Google to Bing, plus no results are coming up as to what it is. Apart from that no real differences have occurred in my laptop.
I havn't yet restarted my laptop, as it executes on start-up, so have no idea what it does.