I'm having problems with a malware infection on my Mac. Sometimes it will refuse to shut down, and it will show a dialog called "Installation In Progress". It is installing software I don't recognize, including "Stateful Firewall", a known nasty adware program. The few posts I have seen on this seem to mistake StateFul Firewall for the actual malware.
I know this is not the real installer. The Mac installer has the same icon and dialog box, but it is called "Installer", not "Installation In Progress".
Anyone heard of this? I've worked with a couple of McAfee agents but it seems to be something obscure.