rpc

• msrpc

• https://www.blackhillsinfosec.com/password-spraying-other-fun-with-rpcclient/

rpcclient -U "" -N 10.x.x.x
rpcclient -U james 10.x.x.x 
rpcclient $> lookupnames james james S-1-5-21-4220043660-4019079961-2895681657-1103 (User: 1)