Browser Modifier:Win 32/Shield Softcby is listed as a Trojan horse which is really dangerous to your computer system. It can trigger a lot of troublesome issues on target computer. As soon as it gets onto your PC, it will make a mess on it. Your specific configurations will be modified and it will collect your personal information without letting you know. What's more, it will change your registry entries for the purpose of making profits. Your whole operating system may be controlled by this virus.