Metasploit: meterpreter flaky

[k41zen <k41zen () me com>]

Grateful for any help someone can offer on this please.

I've successfully got a meterpreter/metsvc_bind_tcp service running on a Windows7 host, however, I can rarely interact 
with the session. AV and the FW are disabled. When I connect and execute commands such as ls and ps I receive the error 
"Unknown Command". 

Sometimes when I connect, the metsvc-server.exe crashes. Restarting the metsvc service on the target and reconnecting 
doesn't seem to make a difference. Rebooting the target and starting my msfconsole session from scratch makes little 
difference too. Uninstalling the service with "metsvc remove-service" and re-installing with "metsvc install-service" 
makes also no difference.

I tried something completely different last night and created a new payload via a USB stick and executed that. This 
gave me a meterpreter/reverse_tcp shell and through that I was then able to install the service again using "run 
metsvc". I instantly connected and could interact with the session without issue. However I came in this morning and 
have exactly the same issues of "Unknown command".

Can anyone help?



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