It can be used to discover specific details to help you understand vulnerabilities and exploitability.
rpcdump.py 10.10.10.204 [pip3 install impacket]
rpcclient -p 135 -N 10.10.10.204
rpcclient -W WORKGROUP -U % 192.168.206.42 --option='client min protocol=LANMAN1'
rpcclient -W WORKGROUP -U % 192.168.206.42 --option='client min protocol=NT1'