displays a one character wide type field. This character is similar to
what is displayed by ls with the -F flag - * for executable files, /
for directories, @ for links, = for sockets, - for character devices,
+ for block devices, | for pipes, ~ for symbolic links to directories and ! for stale symlinks (links that point nowhere).
As stated in the manual, * signifies files with executable bit set
From mc(1) manual:
As stated in the manual,
*
signifies files with executable bit set