740 ILCS 155/4

No surety, his or her heir, executors or administrators, shall be allowed to confess judgment or allow judgment to be entered by default, so as to distress his or her principal, if the principal will enter his or her appearance as defendant to the action, and tender to the surety, his or her heirs, executors or administrators, sufficient counter security, to be approved by the court before which the action is pending.