Zinedine Zidane's headbutt was the most talked about event of the World Cup, so it's only natural that those who missed it on live telly went straight to the internet to find a clip.

Hackers have exploited people's natural curiousity to spread a Trojan via a website that looks like an official FIFA World Cup site.

Websense, an internet threat monitoring company, found the website that has the lead "What did Materazzi say to Zidane?"

Instead of details of the incident, visitors download a Trojan horse downloader that retrieves malware from the site.

Websense's alert warned, "This potentially occurs without user interaction".

The code for the site comes from a "Web Attacker" toolkit, which is apparently sold on a Russian website for $20-$300.

According to Websense, "This toolkit allows users to install code that exploits users based on their browser types".