/usr/share/passenger/helper-scripts/ is in ruby-passenger 4.0.53-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/passenger/helper-scripts/backtrace-sanitizer.rb
/usr/share/passenger/helper-scripts/classic-rails-loader.rb
/usr/share/passenger/helper-scripts/classic-rails-preloader.rb
/usr/share/passenger/helper-scripts/download_binaries/
/usr/share/passenger/helper-scripts/download_binaries/extconf.rb
/usr/share/passenger/helper-scripts/meteor-loader.rb
/usr/share/passenger/helper-scripts/node-loader.js
/usr/share/passenger/helper-scripts/prespawn
/usr/share/passenger/helper-scripts/rack-loader.rb
/usr/share/passenger/helper-scripts/rack-preloader.rb
/usr/share/passenger/helper-scripts/wsgi-loader.py