Is there any way to tell if you've been infected/affected by the Flash Zero-Day exploit?

I'm kind of stressing out right now about this. The Adobe Security Bulletin says "Successful exploitation could cause a crash and potentially allow an attacker to take control of the affected system." A couple of days ago, while restarting my computer, I got a quick BSOD just before Windows fully loaded. The only strange this I noticed is that Dell's "My Downloads" notification kept popping up every 2 minutes or so even if you select Remind me later or Don't ask again. I fixed that problem by renaming the "ToasterLauncher.exe" file to stop it from loading.

I just did a NIS Product Update on 7/8/15 to fix Firefox's constant crashing whenever you closed the browser. I updated Flash to 18.0.0.194 on 6/24/15 then updated it to 18.0.0.203 on 7/9/15. The BSOD crash happened sometime after I updated NIS, but I don't remember if it was before or after the 18.0.0.203 update.

I've performed several NIS Full System Scans and nothing has been flagged, and I also did a Norton Power Eraser scan, with only a single Registy entry flagged and fixed. If my computer has been infected/affected by this exploit, will NIS pick up on it, or is it too late if you're already infected/affected?

Also (not related to the BSOD crash), I just signed up to these forums and it asks to create a username, but there's no test field or anything to make one???