I'm doing a penetration test at the moment, and I am trying to PSEXEC into a machine for which I have the local administrator hash.

I am attempting this with metasploit and metasploits psexec module.

I have LHOST set to my local IP, rhost set to the target IP, SMBUser is set to 'Administrator' and SMBPass is set with the hash.

However, I get an access denied error, which..surely should not be the case? Target is a Windows 7 machine.

I do this regularly as part of penetration tests and have not run into this error before, wondering what the cause could be?