Preheat oven to 350°F. Grease an 8-inch square baking pan.
In a medium bowl, combine the cereal and melted butter. Mix until all of the cereal is coated with butter.
In a small saucepan, combine the corn syrup, salt and sugar. Heat over medium heat, stirring constantly until the sugar is dissolved. Pour over the cereal mixture and stir until combined.
Press into prepared pan and bake for 15 minutes or until golden brown.