Hello yall, I am new here to the forums and I have a quick question preceded by a little background. I am CEH certified and I do teach for a tech boot camp company, so I have some background in this. I set up my labs in virtual box as backtrack 5 and win xp service pack 2. Now when I first started learning metasploit I started with what everyone seems to start with, the old ms08_067_netapi one. This used to work fine back in backtrack 4 and I would pop the xp box everytime. Now I get error, connection refused by remote host then it lists my backtrack ip with a port number of 445. Says exploit completed but no session was created. Does this exploit no longer work in backtrack 5? I know the meterpreter session and reverse tcp is good to go because I just create the trojan now using msfpayload and do it that way. I noticed that armitage doesnt work for me anymore, no exploits work. It runs but doesnt do any exploits as in never gives me the attack menu after I scan for exploits by vulnerability. Just curious if anyone else is having this problem, thanks

Well, when I started out with Metasploit I had the same problem while using ms08-067 against Windows XP SP2. The possible reason is the the victim machine is no more vulnerable(patch has been installed) or there is a Firewall enabled on the XP machine or there is a problem with the IP to connect back.
In my case the XP machine had patch installed and also Firewall enabled. I used some client side attack using SET to exploit the same XP machine and open a meterpreter session. The failure to create a session has nothing much to do with BT5, it's about what your target machine is.

iI think the expliot is right and working properly did you check your virtual box networking settings? can you ping another VMs?  virtual box has a virtual Dhcp that
assigns ip addresses to vms automatically you must go to Virtual machine settings and in devices and select network option and set network card to host only adapter its batter to disable the dhcp server in edit\ preferences and set static ip addresses   

thanks yall, yeah I messed it up. I purposely dont have it patched or firewall on because I do these things as labs when I teach Security + classes. Thanks for the input

same here. Yes ive done the latest msfupdate but I have the most recent bt5, so Im curious