/usr/lib/x86_64-linux-gnu/singularity/helpers/ is in singularity-container 2.4.2-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/singularity/helpers/apps/
/usr/lib/x86_64-linux-gnu/singularity/helpers/apps/list.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/check.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/1-bash-hiddens.py
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/1-cache-content.py
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/1-docker.py
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/1-hello-world.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/checks/3-cve.py
/usr/lib/x86_64-linux-gnu/singularity/helpers/help.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/image.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/inspect.sh
/usr/lib/x86_64-linux-gnu/singularity/helpers/record-env.sh