|Google Searches Web's Dark Side|
|BBC News Wire (firstname.lastname@example.org)|
Thu, 14 Jun 2007 05:20:46 -0500
One in ten web pages -- about ten percent -- scrutinised by search|
giant Google contained malicious code that could infect a user's PC.
Researchers from the firm surveyed billions of sites, subjecting 4.5
million pages to "in-depth analysis".
About 450,000, or ten percent of those examined, were capable of
A further 700,000 pages were thought to contain code that could
To address the problem, the researchers say the company has "started
Drive-by downloads are an increasingly common way to infect a computer
They usually consist of malicious programs that automatically install
"To entice users to install malware, adversaries employ social
Finding all the web-based infection vectors is a significant challenge
"The user is presented with links that promise access to 'interesting'
The vast majority exploit vulnerabilities in Microsoft's Internet
Some downloads, such as those that alter bookmarks, install unwanted
Other pieces of malicious code hijack a computer turning it into a
Drive-by downloads represent a shift away from traditional methods of
As well as characterising the scale of the problem on the net, the
It found that the code was often contained in those parts of the
Widgets are small programs that may, for example, display a calendar
The rise of web 2.0 and user-generated content gave criminals other
For example, postings in blogs and forums that contain links to images
The study also found that gangs were able to hijack web servers,
In a test, the researchers' computer was infected with 50 different
The firm is now in the process of mapping the malware threat.
Google, part of the StopBadware coalition, already warns users if they
"Marking pages with a label allows users to avoid exposure to such
However, the task will not be easy, they say.
"Finding all the web-based infection vectors is a significant
Story from BBC NEWS:
Copyright 2007 BBC
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