If you have the grant number you can download it from McAfee product downloads. Please check the tab Previous version to download VM images of older version.
Thanks for your response.
I have the grant number to login, but if I login and go to previous versions tab to download the Event Receiver 9.3 image, what I found over there to download is the upgrade package not the base package of 9.3
Pls have a look at the below screenshot.Suggest if this is the one to download? TIA