It
does ask you if you want to install McAfee Security Scan
but it's a little tiny un-tick box that is easily missed.
Sneaky !!!! from Adobe (and a backhander from McStuffup)
Be very careful when installing apps downloaded from the web - there is not infrequently a half-hidden un-tick box that will add-on some insecure bit of bloatware or a system bomb like McAfee.
Mac