RPM Rituals: Official, Semi-, Quasi- and Un-official

[Icelander]

Should the Elder Sign be a Ritual in RPM terms or merely a symbol that, if properly drawn (with Symbol Drawing or maybe even Occultism with the right familiarity), triggers Dread in the appropriate beings?

Of course, there's nothing preventing it from being both. Characters without Ritual Magery or even ritual magicians without time to gather energy can make use of the symbol to drivee off creatures with Dread, but when used as part of a Ritual, the Elder Sign reduces energy cost and the effects can be much greater than merely Dread, including banishment or binding, not to mention giving the those warded some much needed protection from terror, madness and the like.

Has anyone written up Lovecraftian rituals or the protective effects of Elder Signs?