/usr/ is in libauthen-krb5-perl 1.9-4build2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/share/
/usr/share/doc/
/usr/share/doc/libauthen-krb5-perl/
/usr/share/doc/libauthen-krb5-perl/changelog.Debian.gz
/usr/share/doc/libauthen-krb5-perl/copyright
/usr/share/doc/libauthen-krb5-perl/examples/
/usr/share/doc/libauthen-krb5-perl/examples/sample_server
/usr/share/doc/libauthen-krb5-perl/examples/simple_server
/usr/share/doc/libauthen-krb5-perl/examples/sample_client
/usr/share/doc/libauthen-krb5-perl/examples/simple_client
/usr/share/man/
/usr/share/man/man3/
/usr/share/man/man3/Authen::Krb5.3pm.gz
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.22/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Authen/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Authen/Krb5.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Authen/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Authen/Krb5/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Authen/Krb5/Krb5.so
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Authen/Krb5/autosplit.ix