这是什么呀？
我的机子现在总是出现这样一个提示：
信使服务：
Microsoft has determined that your PC is susceptible to attacks. If you are re-ceiving that message then your computer is infected and in danger of attack
from hackers and other malicious people.
ALL OF YOUR FILES ARE OPEN FOR EVERYONE TO SEE.
You need to turn off these messages before more harm is done to you machine.
www.MessengerTrap.com
-New Version Available
这是什么？是系统提示还是广告。如果是广告，怎么用上网助手关闭“信使服务广告”却还是出现呢？
