How do you get greasy, waxy yellow run off of walls without taking off the paint too?

I live in an apartment. This is weird junk thay has accumulated in areas like around vents, the bathroom walls and in the kitchen some. It looks like theatre popcorn butter but is waxy and onthe hard side. The others have the same problem here and I think it maybe pollution related. I tried soapy water with bleach, but to no avail.How do you get greasy, waxy yellow run off of walls without taking off the paint too?
try 409...or greased lightning...greased lightning will remove the finish from your hardwood floors..if that can't get it off...it's permanentHow do you get greasy, waxy yellow run off of walls without taking off the paint too?
Try Mr.Clean Magic Eraser Duo! or The Original Magic Eraser.. They work wonders!! You can pick them up just about any Grocery Store or Walmart.
IF THIS IS CAUSED FROM GREASE AND SMOKE USE T.S.P.TRI SODIUM PHOSPHATE IN THE PAINT SECTION OF ANY HARDWARE STORE OR WALL MART - USE 1 TBLSP PER GALLON OF LUKE WARM WATER TO START IF NEEDED YOU CAN DOUBLE THIS UNTIL YOU GET RESULTS
The best household products that I have used is called Soilax and Lestoil.Alot of professioal painters wash down the walls with this before painting and it doesn't harm the paint.