https://otx.alienvault.com/indicator/domain/server.cpmstar.comIf you scroll down you'll see "associated files" wintrojan agent
Malvertising is basically using advertising to inject malware onto user's computers.I highly doubt this site does ANY background or extensive checking when signing on with advertising or what software they use to aid in advertising.I am pointing this out because several of your game links are directed to CPMStAR which i assume your site is using to aid in what advertising is shown or your game links are using it either way it does not look like a safe venue to be using on your users here.
ALSO...
Cross referenced to find this..
https://otx.alienvault.com/indicator/file/f8ef2e2318fd1b053b289079d740388e33c2914b51ce8810065f1332c8e1667aWhich if you scroll down to the HTTP links CPMSTAR is again in there,claiming it uses flash to do it's dirty work.
IDK if this is all directly related to CPMSTAR or who they operate with or link to but you might want to ask some questions or investigate it yourself.
Never forget 3 mile Island and never trust a government official or company spokesman.