Two years ago, there was a virus call Laroux. It embedded two phony hidden sheets in an Excel workbook. Odd enough, both sheets have the exact name - "XXXXXX". The only way to see them are going through the code window for Excel.

Everytime closing the workbook, it gives some type of error and when you click OK, it just shut the entire Excel down. However, it leaves Excel running in the PROCESS tab of the Task Manager.

Anyone knows how to kill the process or to get rid of this virus. It has infected hundreds and hundreds of workbooks at my company.