I just downloaded but when I unzip it, Norton say Batbox.exe is unsafe and automatically deletes it
For sure an False positive.
https://blog.malwarebytes.com/security-world/2017/09/explained-false-positives/
The most simple Solution for now and as long as you want to use the Script,
put Norton to Sleep as long as you are using it.
And if you still have doubts you can still use Virustotal to check the Files before executing them,
but i think this will not be needed.
😎https://www.virustotal.com/gui/home/upload