Jenkins: Copy data from network device with Windows client

We're using Jenkins to test our software on both Windows and Linux. Our Jenkins server (which doesn't have any data drives mounted) starts a Jenkins slave Job on one of our Windows machine which then needs to get data from a network drive that needs to be mounted with different user credentials.

So I need something like

net use \servershare /u:useame PASSWORD
copy data

The problem is I don't want to write PASSWORD in my Jenkins execution script.

On Linux, we use an SSH keyfile and scp for that, but what's the equivalent for that on Windows?