/usr/lib/libsiscardplugin1__ACS__.so is in libbeidlib3-dev 3.5.2.dfsg-10ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libsiscardplugin1__ACS__.so.3.5.2
/usr/lib/libsiscardplugin1__ACS__.so.3.5.2