I running Nessus on port 8834 and I when I run this Nmap script
nmap --script nessus-brute -p 8834 <MY_IP>
It gave me this output
Starting Nmap 7.93 ( https://nmap.org ) at 2023-02-03 10:38 Egypt Standard Time
NSOCK ERROR [0.0460s] ssl_init_helper(): OpenSSL legacy provider failed to load.
Nmap scan report for 192.168.189.1
Host is up (0.00s latency).
PORT STATE SERVICE
8834/tcp open nessus-xmlrpc
Nmap done: 1 IP address (1 host up) scanned in 17.00 seconds
I tried also to put args to the script
nmap --script nessus-brute --script-args userdb='admin',passdb='adminPass' -p 8834 <MY_IP>
And the same output as before.