I’m using a Windows application (.exe) written in Python to manipulate files in a folder. I suspect this application might be sending my files to a remote server without permission. How can I verify if this application is making unwanted network connections?

Specifically:

1. Is there a way to check if this application is connecting to the internet without having to reverse engineer the source code?
2. Besides monitoring network traffic, are there any other clear methods to detect internet access, similar to how Android declares internet permission (android.permission.INTERNET)?

The application is supposed to be offline. I’m looking for straightforward ways to determine if it’s accessing the internet without delving into complex analysis techniques.