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.
Disinfection & Removal
Allow F-Secure Anti-Virus to disinfect the relevant files.
For more general information on disinfection, please see Removal Instructions.
Description Created: Mikko Hypponen, F-Secure