Like to Learn :- Mozilla Firefox or Google Chrome – Which should you use?
2) Check which antivirus is running on that system , if antivirus is not available so it is such critical condition for you.
3) Use or Turn on the Private Mode function if it is available for this you can you trusted browser like Internet Explorer or Mozilla Firefox.
4) Always use the Virtual Keyboard for entering username and password for Internet Banking.
5) Never Click on Check box saying (stay signed in , remember me) often can be find below the password textbox because it will store your username and password in cookies and Cookies can be traced and converted into the readable format with base64 string.
6) Always clean the browser Cookies after your browsing over or before leaving the PC and also try to clear Cache too.
7) Never leave the Browser window open ,close it Completely.
8) Download a virtual keyboard and keep it in your pen drive for entering username and password if possible.