Cannot uninstall application Checkpoint firewall

Hey. My friend has the Checkpoint firewall app downloaded on her Mac, downloaded by her IT guy when she worked at TV, he wasn't very nice, didn't talk much and so she doesn't really know what the app is for. And now to the heart of the matter. I can't uninstall it. I drag it to the trash, the system warns that the system extension is removed together with the app (but I don't see any system extension in the settings), then I empty the trash and after rebooting I see it again and immediately the window starts up, see photo. I tried to open the application files but I can't find the uninstall anywhere, I can't find this app in Library in application support, it's like it's not in the mac at all. Yet right after launching it starts and asks for access to the extension. Nothing else can be run on the app, just this request which disappears after allowing it. Anyone have any idea how to get rid of it? Thank you