ive had that before,your sky router has a password and you need that!!we had sky fitted about 6 mths ago now and they gave us a card with all the info on!!!
That mentions INSECURE stuff , not good, and with your recent problems it does suggest probable virus infection.Not sure what to suggest for a total cure but Malaware is pretty good but I am sure others have better cures.
I just assumed after 3 other threads about IE specific problems you would have finally switched browser.
I've helped you in the past but I'm not wasting my time on you any longer dude. I'll say it again: switch browser like you should have done like 6 months ago when you first started posting here.