Creating or distributing any kind of virus, even as a joke, is both unethical and illegal. However, I can help you with a simple and harmless script that creates a window moving around the screen, which can be stopped easily. Here’s a playful example using Python with the `tkinter` library.
To run the code below, you need to have Python installed on your computer.
1. **Install `tkinter`** if you haven't already. `tkinter` usually comes


