gVim displays every file with an asterisk on the right (and bold)?

Question

It looks like this:

I\'m not sure but I think it started to happen when I reinstalled LAMP (Ubuntu).

All the files used to look like the ones below

Answer 1

NERDTree uses the asterisk to indicate an item is executable, I believe. At least for me, it shows up on all my .bat and .exe files.