Agentless Network Monitor Software that can be used to bandwith usage, uptime and collect statistics from various hosts.

Enumeration

PRTG is commonly found on web ports such as 80, 443, 8080.

Default credentials are usually prtgadmin:prtgadmin.

To confirm version number

curl -s http://10.129.201.50:8080/index.htm -A "Mozilla/5.0 (compatible;  MSIE 7.01; Windows NT 5.0)" | grep version