A sting in the tail of the “Error Check System” Facebook scare

Graham Cluley

Earlier today I warned you about a third-party Facebook application called “Error Check System” that has been moving in mysterious ways on the social network.

Naturally, a lot of people will have been searching for information about “Error Check System” and if you were to enter the name of the application into Google you would probably see results something like this:

If you click on that first result you’ll be taken to a webpage which appears to contain links about “Error Check System”, but also contains code that loads an obfuscated script from another website.

That encrypted script checks to see whether you have arrived via search engine. If you haven’t, it displays a fake 404 page not found message. But if it does believe you have arrived via a search engine like Google it will redirect your browser to another website which initiates a fake anti-virus scan.

The fake…

Read more in my article on the Naked Security website.

Found this article interesting? Follow Graham Cluley on Twitter to read more of the exclusive content we post.

Graham Cluley is a veteran of the anti-virus industry having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent security analyst, he regularly makes media appearances and is an international public speaker on the topic of computer security, hackers, and online privacy. Follow him on Twitter at @gcluley, or drop him an email.