Already there are software products such as a complimentary Сomodo firewall. It controls not only the launch of programs as in levelnet, but also network connections, access to the registry, to autostarting, access to memory and much more. It also has a security policy based on the reactions end-point of the users and the trust of the publisher.
It's really not enough to compare the hash sum of the file. I agree with the arguments of Angel117. Malicious programs have a unique hash amount, so the antivirus response to a file on another computer can not be attributed to a malicious file on another. In this case, the any antivirus is easily recognized due to heuristic analysis. It turns out that reports of reactions any antivirus does not make sense, because this information can not be used and displayed to another user.
And do you have confirmation from antivirus companies that they allow you to use the work of their product for commercial purposes? You need to make a request to each antivirus company and publish their responses on the project website.