/lib/systemd/system/runlevel3.target.wants/systemd-update-utmp-runlevel.service is in systemd 215-17+deb8u7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/systemd/system/runlevel3.target.wants/../systemd-update-utmp-runlevel.service