'Zombie' exploits cached by search engines
(Computer World)

More than a year after first coming to light, the caches of major search engines are still providing a safe hiding place for malicious code, a security company has revealed.

The latest warning comes from security company Aladdin Knowledge Systems Ltd., which logged an attack against a university Web site that was eventually traced back to just such a "poisoned cache." The originating site had been taken offline, but the code from it was still able to spread by living on in the caches of a major search engine.

To make matters worse, cached malicious code could circumvent URL filtering systems because they would stop only the original site address and not the site as found via a search engine indexing it from cache.