MS-RPC client tool (part of the samba suite). More information: https://www.samba.org/samba/docs/current/man-html/rpcclient.1.html.
rpcclient --user domain\username%password ip
rpcclient --user username --workgroup domain --no-pass ip
rpcclient --user domain\username --pw-nt-hash ip
rpcclient --user domain\username%password --command semicolon_separated_commands ip
rpcclient $> enumdomusers
rpcclient $> enumprivs
rpcclient $> queryuser username|rid
rpcclient $> createdomuser username