# nxc mssql > Pentest and exploit Microsoft SQL servers. > More information: . - Search for valid credentials by trying out every combination in the specified lists of usernames and passwords: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{path/to/usernames.txt}} {{[-p|--password]}} {{path/to/passwords.txt}}` - Execute the specified SQL query on the target server: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{username}} {{[-p|--password]}} {{password}} {{[-q|--query]}} '{{SELECT * FROM sys.databases;}}'` - Execute the specified shell command on the target server through MSSQL: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{username}} {{[-p|--password]}} {{password}} -x {{whoami}}` - Execute the specified PowerShell command on the target server through MSSQL without retrieving output: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{username}} {{[-p|--password]}} {{password}} -X {{whoami}} --no-output` - Download a remote file from the target server and store it in the specified location: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{username}} {{[-p|--password]}} {{password}} --get-file {{C:\path\to\remote_file}} {{path/to/local_file}}` - Upload a local file to the specified location on the target server: `nxc mssql {{192.168.178.2}} {{[-u|--username]}} {{username}} {{[-p|--password]}} {{password}} --put-file {{path/to/local_file}} {{C:\path\to\remote_file}}`