Well, is it Prime, or not...
Only one way to find out
Downloaded the installer, checked with AVG, and it appears to be a standard Micrgaming smart installer, not an
RTG.
Let's see what it tries to install:-
I think GG are owed an apology, they certainly did their homework, and didn't throw a baseless accusation at Prime Casino.
Clearly, the "thorough investigation" by Prime casino was lacking before they made their defense, that this was nothing to do with Prime affiliates, but that it was a spoof in the same way that GoneGambling was spoofed in the sending of the mails.
The Europrime site is still up & running, even though I have not seen any further spam with the GG spoofed as sender. The other URL was taken down after the complaint from GG. Europrime is a fake landing page, and contains pages lifted from the genuine Prime casino website.
All that is needed to pin down which casino is being spammed is to investigate the installer, preferably on an "old" PC, not the new one
The "cookie" field in the registry contains the value "66928" - this is the tracking cookie value, and could well be used to trace back to the affiliate responsible for this download website, and probably the spam through GG spoofed sender addresses.