ZA tried to download from official Checkpoint website.
Testing myself out of the app managed download, I did try to download the update manually from Checkpoint website and NOD32 again signal it as a threat.
So want to know if I need to check something to be sure my computer was not compromised in some way (i.e. a rootkit or something that on the fly does change what I try to download from my browser), or NOD32 is too suspicious.