MacDraw Pro: Installing With Gatekeeper and System 7
Installing MacDraw Pro under System 7 after using Gatekeeper's built in disabling feature resulted in a copy of MacDraw Pro that displayed the virus warning upon startup.
This information was provided by Claris Corporation on 16 March 1998, and incorporated into Apple Computer's Tech Info Library.
Installing MacDraw Pro after starting up with the shift key (to disable all extentions) resulted in a copy of MacDraw Pro that would startup without complaints.