Mono injection library that inject and runs .NET code

Hi, we need a mono injection library, that inject and runs .NET code on unity mono process (unity fork of mono runtime 1.0.0.1). The injection library needs to hide and restore loaded assemblies from GetAssemblies() .NET method (full manipulation of mono domain struct field 'domain_assemblies' is desirable). The loaded assemblies need to run as it is loaded without being hided (allowing .net reflection, linq and other main features). Basically the injection assemblies need to see each other but original assemblies must not. We will provide a sample project that need to run on this scenario.