How to prevent trojan

• Make sure your anti-virus software is up to date.
• Keep firewalls set to the highest level.
• Never open an e-mail attachment from someone you don't know.
• Never double-click on an e-mail attachment that ends in .exe. It is an 'executable' file and can do what it likes in your system.
• If you think your machine has already been infected, contact your bank immediately. If the bank thinks you are a genuine victim of fraud it will reimburse you.