Conn. Gen. Stat. § 45a-291: (Formerly Sec. 45-189). Executor to administer intestate part of an estate.

When a will which disposes of only a part of the estate of the testator is admitted to probate, the executor of such will, or the administrator with the will annexed, shall, unless otherwise specified in such will, be, ex officio, the administrator of the intestate estate and shall proceed to settle the entire estate according to the will and according to law.