/usr/lib/x86_64-linux-gnu/ is in libfilter-perl 1.55-3.
This file is owned by root:root, with mode 0o755.
..
/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/Filter/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/Util/Exec/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/tee.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/Util/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/Util/Call.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/Util/filter-util.pl
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/Util/perlfilter.pod
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/Util/Exec.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/exec.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/sh.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/cpp.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Filter/decrypt.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/tee/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/tee/tee.so
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/Util/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/Util/Call/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/Util/Call/Call.so
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/Util/Exec/Exec.so
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/decrypt/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Filter/decrypt/decrypt.so