Yet another Word macro virus has been uncovered, but this one has a new twist: It's the first virus that can jump from Word documents to Excel spreadsheets and vice versa.
Network Associates says the "travelling" virus, dubbed W97/X97M Shiver, is the first one able to infect both Word 97 and Excel 97 documents. Although it apparently won't erase files or affect data, users could find that infected files are difficult to open or modify, the company says.
Regardless of which application is infected first, Shiver can make the jump to the other. If Word is hit, the virus creates an Excel macro after the program is closed. If Excel is the source of infection, Shiver invades Word's Global Template when that application is exited, Santa Clara, Calif.-based Network Associates said.
The company is offering free tests for the virus at its Web site at http://beta.nai.com/public/datafiles/.