/usr/lib/mono/2.0/xsp2.exe is in mono-xsp2 3.8-2.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/mono/2.0/../gac/xsp2/3.8.0.0__0738eb9f132ed756/xsp2.exe
/usr/lib/mono/2.0/../gac/xsp2/3.8.0.0__0738eb9f132ed756/xsp2.exe