I don't know if it's true or not giving the source
http://www.dailymail.co.uk/sciencetech/article-1362205/Thousands-home-computers-infiltrated-hackers-infect-high-profile-websites-booby-trapped-ads.html
And I thought the BBC was slow yesterday http://www.idnetters.co.uk/forums/index.php/topic,24966.0.html
http://www.theregister.co.uk/2011/02/28/tainted_ads_blight_uk_sites/
How to remove it. http://www.bleepingcomputer.com/virus-removal/remove-system-tool
Luckily, I don't visit such rarefied sites. ;)