Anglo Irish Bank has been granted an injunction against the wife of former chief executive David Drumm preventing her from transferring half of her property in Dublin back into Mr Drumm's name.
The bank told the court it feared this was being done to put the house beyond the reach of creditors.
Anglo Irish Bank is taking Mr Drumm and Lorraine Drumm to court over the transfer last year of a house in Malahide from their joint names to Mrs Drumm's name.
The action was due to begin next week, along with another action to recover more than €8m from Mr Drumm.
But last Thursday, Mr Drumm filed for bankruptcy in the US.
Anglo told the Commercial Court it received a letter from Mrs Drumm's solicitors last night saying she had given instructions to transfer a half share of the house back into Mr Drumm's name.
She said this was being done to settle the proceedings in relation to the house.
Under US law, an asset acquired after a person has filed for bankruptcy cannot then be brought back into the bankruptcy proceedings, the court was told.
Mr Justice Kelly granted an injunction stopping the transfer.
He set next Tuesday as a date for the US trustee in bankruptcy to come to the court and explain what she intends to do in relation to the Irish legal proceedings.