In a medium mixing bowl, prepare the filling by combining crab meat, cream cheese, Worcestershire sauce, soy sauce, garlic powder, and green onion.
Spoon 1 tablespoon of filling into the center of each wonton.
Brush the 4 sides of each wonton with egg white, then fold the corners into the center and press together to seal.
Fill a skillet 1 1/2 inches deep with oil. Heat to 350° F, then work in batches to fry crab rangoon until golden brown and bubbly (about 2-3 minutes). Use metal tongs to flip as necessary.
Remove from oil and drain on paper towels.
Serve with sweet and sour sauce.