Yeah, definitely scale bugs. You can get rid of them using insecticides.

I can recommend you “Spruzid” made by Neudorff. You can find it pretty much everywhere in local garden or hardware stores, like Dehner, Obi, etc.
I like it because it’s by far not as harmful as other (synthetic) pesticides, especially for pets. It’s even fine to use it on veggies.

You can speay your phalaenopsis in it until it’s completely soaked. Repeat that after a few weeks.

Often, pests are just a symptom of an unhealthy plant, so maybe fix the underlying issue first, like nutritional deficiencies or insufficient light.

I pretty much never have to fight pests with my houseplants, and even if I get a contaminated one, they somehow don’t spread and just disappear.