McDonalds.exe (mc.exe) is a screamer program that was spread across the Internet in the early 2000's. The program icon is the McDonald's logo on a red background. Even though one would think otherwise, this has nothing to do with the McDonald's fast food franchise.
When the user launches the program, the screen turns black and some green Chinese text appears. A few seconds later, the text disappears and the screen returns to its original state. Shorty after that, a pop-up window appears with some Chinese text and an e-mail address. After a short delay from when the user closes the window, a black and white picture of a girl with no eyes will pop along with a short scream.
NOTE: The following video contains a screamer.
NOTE: This program could potentially harm your computer.