Windows general security
 
 
Protocols providing information: CIFS/SMB and NetBIOS, through TCP port 139, and another SMB port, 445.
Banner enumeration is not the main issue. (UDP 137), 
Null session command:  net use \\19x.16x.11x.xx\IPC$ “” /u:””
Good source of system and hacking tools: Resource kits XP  and 7. Some tools were re-written by hackers.