This still requires the user to deliberately install the malware. Since it's not compromising the system, but the user, it doesn't need privileges to do this.
Gee, users deliberately installing things that might be harmful for their computer? I can't ever see that happening....
I fear that's going to be prohibitively expensive.
Perhaps but it would look cool maybe a anime type movie instead of live action.
New crypt. See /usr/news/crypt.