S.C. Code Ann. § 34-11-110

Notice to any bank or trust company doing business in this State of an adverse claim to a deposit standing on its books to the credit of any person shall not be effectual to cause the bank or trust company to recognize the adverse claimant unless: (1) The claimant first procures a restraining order, injunction or other appropriate process against the bank or trust company from a court of competent jurisdiction wherein the person to whose credit the deposit stands is made a party; or (2) the claimant first executes and delivers to the bank or trust company, in form and with sureties acceptable to it, a bond, indemnifying the bank or trust company from all liability, loss, damage, costs and expenses, resulting from the payment of the adverse claim or the dishonor of any check or other order of the person to whose credit the deposit stands on the books of the bank or trust company. Provided, that this section shall not apply in any instance where the person to whose credit the deposit stands is a fiduciary for such adverse claimant, and the facts constituting such relationship as also the facts showing reasonable cause of belief on the part of the claimant that the fiduciary is about to misappropriate the deposit, are made to appear by the affidavit of the claimant.