/usr/lib/ is in libnet-nis-perl 0.44-1build4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.26/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/NIS/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/NIS/Table.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/NIS.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/NIS.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/NISTable.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/NIS/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/NIS/NIS.so
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/NIS/autosplit.ix