/usr/lib/x86_64-linux-gnu/ is in libb-hooks-op-check-entersubforcv-perl 0.09-3+b1.
This file is owned by root:root, with mode 0o755.
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/usr/lib/x86_64-linux-gnu/perl5/5.20/B/
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.20/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/Hooks/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/Hooks/OP/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/Hooks/OP/Check/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/Hooks/OP/Check/EntersubForCV/
/usr/lib/x86_64-linux-gnu/perl5/5.20/auto/B/Hooks/OP/Check/EntersubForCV/EntersubForCV.so
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/EntersubForCV/
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/EntersubForCV/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/EntersubForCV/Install/Files.pm
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/EntersubForCV/Install/hook_op_check_entersubforcv.h
/usr/lib/x86_64-linux-gnu/perl5/5.20/B/Hooks/OP/Check/EntersubForCV.pm