/usr/lib/ is in lightsquid 1.8-5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/cgi-bin/
/usr/lib/cgi-bin/lightsquid/
/usr/lib/cgi-bin/lightsquid/bigfiles.cgi
/usr/lib/cgi-bin/lightsquid/day_detail.cgi
/usr/lib/cgi-bin/lightsquid/get.cgi
/usr/lib/cgi-bin/lightsquid/graph.cgi
/usr/lib/cgi-bin/lightsquid/group_detail.cgi
/usr/lib/cgi-bin/lightsquid/index.cgi
/usr/lib/cgi-bin/lightsquid/month_detail.cgi
/usr/lib/cgi-bin/lightsquid/topsites.cgi
/usr/lib/cgi-bin/lightsquid/user_detail.cgi
/usr/lib/cgi-bin/lightsquid/user_month.cgi
/usr/lib/cgi-bin/lightsquid/user_time.cgi
/usr/lib/cgi-bin/lightsquid/whousesite.cgi
/usr/lib/cgi-bin/lightsquid/common.pl
/usr/lib/cgi-bin/lightsquid/lightsquid.cfg