/etc/ftpusers is in ftpd-ssl 0.17.33+0.3-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | # /etc/ftpusers: list of users disallowed ftp access. See ftpusers(5).
root
ftp
anonymous
|