/usr/lib/perl5/KinoSearch1/Util/ is in libkinosearch1-perl 1.00-1build3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/perl5/KinoSearch1/Util/BitVector.pm
/usr/lib/perl5/KinoSearch1/Util/ByteBuf.pm
/usr/lib/perl5/KinoSearch1/Util/CClass.pm
/usr/lib/perl5/KinoSearch1/Util/Carp.pm
/usr/lib/perl5/KinoSearch1/Util/Class.pm
/usr/lib/perl5/KinoSearch1/Util/IntMap.pm
/usr/lib/perl5/KinoSearch1/Util/MathUtils.pm
/usr/lib/perl5/KinoSearch1/Util/MemManager.pm
/usr/lib/perl5/KinoSearch1/Util/PriorityQueue.pm
/usr/lib/perl5/KinoSearch1/Util/SortExternal.pm
/usr/lib/perl5/KinoSearch1/Util/StringHelper.pm
/usr/lib/perl5/KinoSearch1/Util/ToStringUtils.pm
/usr/lib/perl5/KinoSearch1/Util/ToolSet.pm
/usr/lib/perl5/KinoSearch1/Util/VerifyArgs.pm