Assuming you have visited a website that has already been infected with SQL injection attack Liza Moon, the personal computer may be infected with the virus if you follow the instructions scareware displayed on the screen.
When you follow a link from an infected website, pointing to a website that displays false Liza Moon screens that seem to indicate that your computer has been infected with a virus and asks you to click several buttons to scan your computer to delete the virus. During this process, you may think they are cleaning your computer, but you are actually downloading and installing the virus on your computer.
If you follow through the process of installing a fake “Windows Stability Center,” which supposedly scans your computer and find a lot of mistakes. So, if you an opportunity to buy a software that cleans your computer of these bogus problems.
So everything is a scam to get you to give them your credit card to buy their software that does not really do anything except to turn off warnings that the virus itself put in place.