The criminals make money, said security firm Commtouch, by eventually shunting to users a marketing page that generates pay-per-click revenues.
Hackers and scammers are able to rapidly ramp up attacks whenever a major news story breaks because they're simply tweaking existing malware or schemes, said Hypponen. And some of their processes are even automated.
"The [search engine poisoning] is fully automated," Hypponen said, referring to the tactic where hackers and other cyber criminals pollute search engine results with pages containing links to malicious sites.
"They automatically generate pages with worthless content, or sometimes with no content at all," said Hypponen. "This works especially well when the news hasn't yet been covered by a normal site. It's possible for anybody to get their page within the top 10 [results] by being fast enough."
Hypponen expected that cyber criminals will continue to exploit Bin Laden's death for some time to come. "They usually keep trying longer than it actually works," he said. "Most people won't be falling for [such scams] for very long, but the video might work for a while, because I wouldn't expect the U.S. to release a real video."
Also part of the Bin Laden campaigns, experts said yesterday, was the first attempt by online crooks to push Mac-specific rogueware to Apple's customers.