Manipulated stp surface

Hey,
I want to import a STP data into Rhino/Grasshopper. After that I want to deform the surface of the 3D model and export the new shaped model to a new STP data.
How does this work?

Rhino: Import STEP - deform - export STEP.
GH: Reference STEP as a BREP - deform - bake geometry - export STEP.

Thanks.
Could you provide me a GH File with this solution?

It’s just going to be a BREP container to reference the STEP geometry. There’s nothing else to see.