/usr/share/zentyal/ is in zentyal-squid 2.3.3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/zentyal-squid/enable-module
/usr/share/zentyal-squid/initial-setup
/usr/share/zentyal-squid/manage-services
/usr/share/zentyal-squid/sql/
/usr/share/zentyal-squid/sql/period/
/usr/share/zentyal-squid/sql/period/squid_traffic.sql
/usr/share/zentyal-squid/sql/squid_access.sql
/usr/share/zentyal-squid/sql/squid_access_report.sql
/usr/share/zentyal/modules/
/usr/share/zentyal/modules/squid.yaml
/usr/share/zentyal/stubs/
/usr/share/zentyal/stubs/squid/
/usr/share/zentyal/stubs/squid/adzapper.conf.mas
/usr/share/zentyal/stubs/squid/bannedextensionlist.mas
/usr/share/zentyal/stubs/squid/bannedmimetypelist.mas
/usr/share/zentyal/stubs/squid/bannedphraselist.mas
/usr/share/zentyal/stubs/squid/bannedregexpurllist.mas
/usr/share/zentyal/stubs/squid/bannedsitelist.mas
/usr/share/zentyal/stubs/squid/bannedurllist.mas
/usr/share/zentyal/stubs/squid/clamdscan.conf.mas
/usr/share/zentyal/stubs/squid/dansguardian.conf.mas
/usr/share/zentyal/stubs/squid/dansguardian.logrotate
/usr/share/zentyal/stubs/squid/dansguardianfN.conf.mas
/usr/share/zentyal/stubs/squid/exceptionphraselist.mas
/usr/share/zentyal/stubs/squid/exceptionsitelist.mas
/usr/share/zentyal/stubs/squid/exceptionurllist.mas
/usr/share/zentyal/stubs/squid/filtergroupslist.mas
/usr/share/zentyal/stubs/squid/greysitelist.mas
/usr/share/zentyal/stubs/squid/greyurllist.mas
/usr/share/zentyal/stubs/squid/ipgroups.mas
/usr/share/zentyal/stubs/squid/pics.mas
/usr/share/zentyal/stubs/squid/squid.conf.mas
/usr/share/zentyal/stubs/squid/t/
/usr/share/zentyal/stubs/squid/t/filtergroupslist.t
/usr/share/zentyal/stubs/squid/t/squid.conf.t
/usr/share/zentyal/stubs/squid/template.html.mas
/usr/share/zentyal/templates/
/usr/share/zentyal/templates/squid/
/usr/share/zentyal/templates/squid/ajax/
/usr/share/zentyal/templates/squid/ajax/applyAllForm.mas
/usr/share/zentyal/templates/squid/ajax/setter/
/usr/share/zentyal/templates/squid/ajax/setter/timePeriod.mas