This file is indexed.

/usr/lib/x86_64-linux-gnu/libkrb5.so.3 is in libkrb5-3 1.15-1+deb9u1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libkrb5.so.3.3