Check if your Mac OS X is ‘infected’

Some of you might have read the posting about the infection issues on Mac OS X I just looked into it and guess it's easy to detect if you're 'infected':
$ sudo -u root cat /etc/sudoers | grep NOPASSWD | grep -v ^# | wc -l
If it returns a 0, everything is fine... if not... you might be infected, or you modified the sudoers file yourself. Schermafbeelding 2015-08-04 om 22.20.58