[ppi] [ppiindia] The Dangerous Side of Search Engines

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http://www.washingtonpost.com/wp-dyn/content/article/2006/05/26/AR2006052600105.html?referrer=email&referrer=email&referrer=email

The Dangerous Side of Search Engines
Popular search engines may lead you to rogue sites. Here's what you need to 
know to avoid dangerous downloads, bogus sites, and spam.

Tom Spring, PC World
PC World
Friday, May 26, 2006; 3:10 AM 

Who knew an innocent search for "screensavers" could be so dangerous? It may 
actually be the riskiest word to type into Google's search engine. Odds are, 
more than half of the links that Google returns take you to Web sites loaded 
with either spyware or adware. You might also face getting bombarded with spam 
if you register at one of those sites with your e-mail address.

A recently released study, coauthored by McAfee and anti-spyware activist Ben 
Edelman , found that sponsored results from top search engines AOL, Ask.com, 
Google, MSN, and Yahoo can often lead to Web sites that contain spyware and 
scams, and are operated by people who love to send out spam.

The study concluded that an average of 9 percent of sponsored results and 3 of 
organic search results link to questionable Web sites. The study was based on 
analysis of the first five pages of search results for each keyword tested.

According to the results of the study, the top four most dangerous searches on 
Google are:

The study defined dangerous sites as those that have one or a combination of 
the following characteristics: its downloads contain spyware and/or adware; its 
pages contain embedded code that performs browser exploits; the content is 
meant to deceive visitors in some way; it sends out inordinate amounts of spam 
to e-mail accounts registered at the site.

These results are a sobering wake-up call to Web surfers, and they illustrate 
the changing nature of Internet threats today. It used to be that most viruses 
and scams made their way to our PCs via our inboxes . But thanks to security 
software that's getting better at filtering out viruses, spam, and phishing 
attacks from our e-mail, rogue elements are having a difficult time 
booby-trapping our PCs.

"Scammers and spammers have clearly turned to search engines to practice their 
trade," says Shane Keats, market strategist for McAfee.

McAfee says that of the 1394 popular keywords it typed into Google and AOL 
alone, 5 percent of the results returned links to dangerous Web sites. Overall, 
MSN search results had the lowest percentage of dangerous sites (3.9 percent) 
while Ask search results had the highest percentage (6.1 percent).

Given the study's findings, it shouldn't come as a big surprise that the 
company has a free tool, called McAfee SiteAdvisor, for tackling the problems. 
In my tests I found it does a great job of protecting you from the Web's dark 
side.

Since March McAfee has been offering a browser plug-in that works with Mozilla 
Firefox and Microsoft Internet Explorer. SiteAdvisor puts a little rectangular 
button in the bottom corner of the browser. If a site you're visiting is safe, 
the SiteAdvisor button stays green. When you visit a questionable Web site the 
button turns red or yellow (depending on the risk level) and a little balloon 
expands with details on why SiteAdvisor has rated the site as such.

SiteAdvisor ratings are based on threats that include software downloads loaded 
with adware or spyware, malicious code embedded in Web pages, phishing attempts 
and scams, and the amount of spam that a registered user gets.

SiteAdvisor takes it a step further with Google, MSN, and Yahoo. With these 
search engines, it puts a rating icon next to individual results. This is a 
great safety feature and time saver, steering you clear of dangerous sites 
before you make the mistake of clicking on a link.

For example, when the site Screensaver.com appeared in my Google search 
results, a red SiteAdvisor warning appeared next to it. When I hovered over the 
icon, it delivered stats on the site . According to SiteAdvisor, 
Screensaver.com offered a download that contained what some consider adware or 
spyware, and any e-mail address I used to register with the site would receive 
about 47 "spammy" e-mails a week.

In the past I've highly recommended anti-phishing toolbars that warn you of 
shady sites that try to trick you out of personal information under false 
pretenses. But if you're looking to beef up your PC protection, I recommend 
using SiteAdvisor instead.

SiteAdvisor says it has preformed a security analysis of 3.3 million Web sites 
using an automated process. According to McAfee's Keats, SiteAdvisor collects 
these sites by constantly crawling the Web using hundreds of computers. Its 
analysis includes checks for deceptive sites and browser exploits. But 
SiteAdvisor goes a step further and downloads any software that a site may 
offer visitors, then checks it for spyware and adware. Keats says SiteAdvisor 
has reviewed over 725,000 software titles so far.

To evaluate spam levels, SiteAdvisor has registered a unique e-mail address at 
2.5 million sites. It then weighs the volume of e-mail that each account gets 
and evaluates how spammy the messages are.

SiteAdvisor software calculates the risk that a site poses based on those 
criteria and assigns it either a green, yellow, or red label. A red site fails 
SiteAdvisor's safety tests because it either distributes adware, sends a high 
volume of spam, or makes unauthorized changes to your PC. Yellow sites send a 
high volume of "non-spammy" e-mail, display many pop-up ads, or prompt a user 
to change browser settings. Green sites are safe.

With SiteAdvisor, you may learn that some sites you wouldn't think would be 
problems are. For example, it turns out if you register with the United Nations 
Web site you'll get 57 e-mails a week. And you'll get 24 e-mails a week if you 
register the official South Beach Diet site .

Currently, SiteAdvisor is available for free, and McAfee plans to deliver a 
premium version of its product by September.

McAfee isn't alone. A UK-based company called ScanSafe offers a free Web-based 
tool called Scandoo . At the Scandoo site, you can key in searches for either 
Google or MSN. When it displays search results, it rates the security threat 
that each site poses. But Scandoo goes a step further than SiteAdvisor: Along 
with security and privacy advisories, Scandoo warns you about pornography, 
gambling, and pirated software. A browser plug-in is also in the works, 
according to the company.

A nonprofit group called StopBadWare.org (backed by Google, Lenovo, and Sun 
Microsystems) has begun to create a massive database of questionable Web sites. 
The database will be made available to the public, nonprofits, companies, and 
government officials. StopBadWare.org says it also is working on an application 
that would evaluate Web sites offering downloads and warn surfers about 
security threats as they stumble onto them online.






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