This a Word macro virus which works only under German versions of Microsoft Word.
Clock disables the Word Tools/Macro menu (in German, Extras/Makro) and macro Organizer in order to hide itself better.
Clock replicates to documents whenever they are opened or closed through Word menus.
As a side effect, all macros from documents that get infected get copied to the NORMAL.DOT file.
Clock activates by sometimes displaying a dialog box with current date and time and sometimes swapping the menu functions for opening and saving files with each other.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
More information on scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
Description Details: Mikko Hypponen, F-Secure