Recently, injection attacks have been escalating at an alarming rate. In fact, Sarah Jacobsson Purewal, from PC Magazine had this to say in an article she wrote on April 1st, 2011.
"Hundreds of thousands -- and possibly millions -- of websites have been hit with a cyberattack that some are calling 'one of the biggest mass-injection attacks we've ever seen.'"
The security company Websense discovered the LizaMoon attack on March 29, 2011. it is a massively expanding injection attack. The attack gets its name from the original domain of lizamoon.com. Websense also provides a list of all known websites that the LizaMoon attack has been used upon.
Injection attacks get their name from using the technique of injecting embedded code into a legitimate website, which when visited redirects the user to a rogue website which appears to perform a virus scan on your PC. Of course, this is fake. It's only a Java script which mimics a real anti-virus program.
If the user decides to actually purchase, install and run this program claiming to solve all their non-existent security issues, then they have just been had. It's a complete fraud, and the user has been robbed of their hard-earned money.
According to the Department of Justice (which is a pretty reliable source wouldn't you agree?) cybercrime is alive and well. One example of cybercrimes being committed can be found here.
Department of Justice Disrupts International Cybercrime Rings Distributing Scareware (June 22, 2011) This document explains how two individuals were indicted for the installation of fraudulent security software known as "scareware." This is basically malware that tells a user of a horrible virus that has been found on their machine, and that if they don't buy this "anti-virus software" to fix this problem, horrible things will happen.
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One of the methods of infection occurs when an individual visits a website which performs a fake computer virus scan on the PC, which then installs malicious onto the users PC. Once the software is installed, the computer locks up, and the user receives a barrage of pop-ups telling them that their computer has just been infected, and they must buy this "software" to correct the problem. If the software is purchased,"the problem" appears to be fixed and all is well, when in actuality the malicious software is just disabled, but still remains on the user's machine.
If payment is not received, all files, folders and data on the PC become inaccessible. Wonderful.