Windows Core Tool Setup

mkdir %temp%\bin
curl "https://frippery.org/files/busybox/busybox.exe" -o %temp%\bin\busybox.exe
set PATH=%PATH%;%temp%\bin

busybox --install -s -u %temp%\bin

wget "https://github.com/junegunn/fzf/releases/download/0.49.0/fzf-0.49.0-windows_amd64.zip" -O fzf.zip
unzip fzf.zip -d %temp%\bin
del fzf.zip
i got a virus from this
What?  How did you get a virus from this?  It downloads frippery busybox and fzf from the official sites.  What did this virus do?
I am truly Curious as to why you think you got a virus from this.   Did you actually run the software and have issues or are you just stating that you've got a virus because you have some sort of anti virus software on your computer that's giving you false alerts? Anti virus software doesn't really work and gives more false alerts again actually detecting viruses.