Fake security software scammers jump on Conficker

Google's search rankings are being manipulated in order to trick people into downloading bad software

Google's search rankings are being stuffed with links to fake security software that purports to remove Conficker, a widespread worm that's currently the Internet's number one security threat, but doesn't.

Certain search terms will bring up a host of Web pages that could either infect a PC with malicious software or try to sell a dodgy security program, said Rik Ferguson, senior security advisor for the vendor Trend Micro.

Ferguson said he's noticed an uptick in these kinds of sites over the last day or so as other legitimate software tools have been released that can detect Conficker, which has infected between 3 million and 10 million PCs worldwide.

For example, a search for "Nmap Conficker" will bring up malicious results, Ferguson said. Nmap is an open-source networking tool that has been upgraded to detect Conficker infections.

Ferguson said he was surprised at how quickly the scammers began manipulating Google with those search terms, as Nmap was just recently upgraded.

Scammers game Google's search engine by creating Web sites full of search terms, Fergusons said. Another tactic is spamming high-traffic Web sites that lead back to their malicious site in order to drive their Web site up the search ranks.

Google has been battling those who try to manipulate its search engine, but the scammers sometimes win out for a while. Ferguson, who posted screen shots of searches he did late Monday night, said he has contacted Google about his findings.

The fake security software Web sites will ask a user to download a file that scans a machine for malware. The software usually tells the user the PC has malicious software even if it isn't infected, Ferguson said.

The software will then badger the user to buy the questionable security program.

"Once you've downloaded it, it's extremely difficult to get that stuff off your machine," Ferguson said.

Finnish security vendor F-Secure has also seen a number of new domain registrations for Web sites selling software that supposedly removes Conficker, according to a company blog.

One of those programs, called MalwareRemoval Bot, demands US$39.95 to remove malware. But it doesn't work.

"It does not remove Conficker.C," wrote Patrik Runald, security response manager for F-Secure. "It didn't do a thing."

Conficker is a difficult-to-remove worm that has vexed the security community. Versions of the worm spread by taking advantage of a vulnerability in the Microsoft Windows Server service, through infected removable media or brute-forcing weak passwords.

The security community is bracing itself for Wednesday, when the Conficker.C variant will become active. The worm is programmed with an algorithm that will generate random domain names.

If one of those domain names is live, the worm will go to the Web site and try to download further instructions.

Conficker.C is programmed to generate 50,000 domain names a day and will then try to access 500 of those names per day, according to the security company Websense.

Those controlling Conficker have yet to use it for malicious purposes, but the vast number of machines that are infected means the botnet could be capable of devastating denial-of-sevice attacks, spam campaigns or widespread data theft.

Microsoft is offering a $250,000 reward for information leading to the arrest and conviction of Conficker's creators.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags scamsconflickermalware

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Kurt Hegetschweiler

Brother PocketJet PJ-773 A4 Portable Thermal Printer

It’s perfect for mobile workers. Just take it out — it’s small enough to sit anywhere — turn it on, load a sheet of paper, and start printing.

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?