There's been a couple of trojans recently that imitate the Adobe Flash Player installer one of which is called OSX/flashback.A. (More info here) I've been wary of updating Adobe Flash Player due to this trojan. How do I tell if the installer is the real thing, or if it's just a trojan? Also, where does it come from? I'm pretty sure the DMG for the trojan downloaded automatically, opened the installer, and wanted me to install it.
I know that I can download the official installer from the Adobe website, and will probably do this. However, my questions remain.