'You shall not pass' is a fake notification, which clearly reveals the fact that your computer is infected with the browser hijacker. As soon as this threat gets inside the PC, it modifies the system and affects all Internet browsers, including IE, Mozilla Firefox and Google Chrome. As a result, user becomes incapable to get on such popular websites as Facebook, Google, ebay, Amazon and similar ones. Instead of reaching these sites, he/she sees only a huge 'You shall not pass' notification with a photo of magician (often called as Gendalf). Please, do NOT ignore this virus because it may initiate more problems during your browsing sessions. Typically, it may redirect you to malicious site or track your browsing habits and steal personal information from the PC. In order to remove 'You shall not pass' virus, scan your PC with updated anti-spyware and get rid of malicious entries.
'You shall not pass' virus starts appearing during victim's browsing sessions as soon as it gets inside its target PC. For that, it relies on trojan horse, which is known as Backdoor:Win32/Fynloski.A. Typically, this trojan exploits security vulnerabilities and attacks poorly protected systems. In order to prevent its infiltration, you should use reputable security software and also avoid illegal websites, freeware, shareware, spam and similar things. Once it attacks the PC, 'You shall not pass' virus modifies some of PC's parameters and begins interrupting victim's search sessions by redirecting him/her to malicious site. If you also see this annoying 'You shall not pass' notification, you should take all necessary measures to eliminate this threat from your computer.
If you are continuously interrupted by 'You shall not pass' alert, you are infected with dangerous virus. In order to remove it from the system, we highly recommend using STOPzilla or SpyHunter. Of course, don't forget to use updated versions to have a full virus database.
Information added: 05/20/13 06:06;
information updated: 05/20/13 06:06