The title says it all, a way to make realtime, manual and scheduled not use herustics on files signed by trusted venders. ;D
This would cut down a lot of FP as the Trusted Venders list got the better!
:-TU :-TU
???
Microsoft products have never been infected? ;D
that is why i said heuristics, it will still scan trusted venders with signatures
But signatures are only effective if the malware is known and a signature has been created for it. That is the whole concept behind heuristics, to detect unknown malware.
I do see that point, but the heruistics on high do give a lot of FP there must be a sullution other then lowering the the level.
Are trusted vendors and safe apps always safe?
If suddenly a trusted vendor or a safe app act badly, what will save me?
+0 because some virus can infect executable file. including Microsoft operating system file.
I was infected by Win32.Virut last 2 years it’s infected system file and my Antivirus was automatic quarantine infected file.
After I reboot , I can’t see my desktop because my system file was gone. 
But the Signature by Microsoft would become fake if the file changed and D+ is there to prevent changes
AV already has detection for Virut so It would still catch the trojan
D+ would let it execute so yes you would most likely be screwed if the Signatures would not catch it or it was
not a virus, Just a bad bug
And I wish CAV engine can repair infected file in the future too.