The prevalence of web-based viruses has skyrocketed within the last year. The growth has been fueled by a class of fake antiviruses that arise from web browser banner ads. The pop-up ads claim that your PC is infected and, when clicked (even on the 'X' to close the window), will install their malware. The resulting fake antivirus infection claims to scan your PC for viruses and then usually prompts the user for a credit card to obtain the "full" version. The companies that write and sell these viruses make millions off fraudulent product and reselling credit card numbers.
What can PC users do to help prevent these attacks? First, use FireFox, an alternative browser to Microsoft's Internet Explorer. FireFox is, on the whole, safer to use than IE, and can extend its capabilities through a wide range of 3rd-party add-ons. One of these add-ons, Adblock Plus, can help prevent the malware attacks mentioned above. You simply choose to add Adblock Plus to FireFox, restart the browser, and then select one of the default filter lists (I chose EasyList). It's that simple.
