First off, these viruses are usually the result of visiting sites that are less than reputable. Never submit information on a website you don't trust or (let's be honest) is completely riddled with pornographic images. Secondly, always keep your anti-virus updated with the latest definitions. Third, keep your anti-malware scanner software updated as well. Lastly, even with the latest updates on both antivirus and anti-malware, it does you no good if you don't run regular scans on your PC. Most PC techs will tell you to run a scan at least once a week or more often depending on your web surfing activity.
Depending on your antivirus program, be sure to visit its website for information on this virus, and tips on how to prevent it from giving you trouble on your PC. A good rule of thumb for myself is that I clean my browser history, delete my cookies, and run every scan possible with both my anti-virus and anti-malware software programs at least twice a week. This is not because of pornographic sites, but because I do a lot of research both on black hat sites and white hat sites. I have to be well versed in network security. But for the average user, a scan of both programs at least once a week is more than prudent.
Also, if you have children, please limit their internet activities, set parental controls, and block websites entirely if you think there may be some questionable content. For more information, please visit the following sites I believe to be helpful:
If you still need help, please contact a PC technician immediately for assistance. Also keep in mind that like with any new virus or computer or network security issue, updates are being put together as fast as humanly possible. Patches are being made, and updates are being designed to close loopholes. Be sure to keep up-to-date on all updates (whether you're a MAC or PC user).
For more information, contact your network or system administrator if in a work environment.