He binged "chrome" and opened the first link. Bam. Spyware.
You can check for yourself here: http://www.bing.com/search?q=chrome&go=Valider&qs=n&form=QBLH&pq=chrome&sc=8-6&sp=-1&sk=&cvid=0d921f38267d4a129916e5c8dfa93418
might be just in french though, looks so legit:
Telecharger Google Chrome | Google.com www.Google.com/Chrome Téléchargez Google Chrome Gratuit ! Dernière Version
How come they can enter a fake domain name in the advertisement program of Bing?