/usr/lib/x86_64-linux-gnu/libiscsi.so is in libiscsi-dev 1.17.0-1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libiscsi.so.7.0.2
/usr/lib/x86_64-linux-gnu/libiscsi.so.7.0.2