W97M/Akuma is a Word 97 class infector. It contains a destructive payload.
When an infected document is opened, W97M/Akuma.A disables Word's built-in
macro virus protection.
When the document is closed, it infects the global template. During
infection the virus creates a temporary file, "c:\cont.dbl", and
deletes it afterwards.
At random times this virus changes the document summary information as
Title: Akuma Macro Carrier
Keywords: Mary Bitch
Between every 16th and 18th day of each month, the virus checks for
existence of "c:\mary.log" file. If the file does not exist, it
replaces every recently opened document (listed in the "File" menu)
with the following text:
Something wonderful has happened, your PC is alive and even better
but some of your documents are infected by the Akuma virus.
Mary is simply a bitch and you, (Username), are a stupid jerk and
lose some files.
Have a nice day.
In the above text "(Username)" has been replaced with the current user
The original content of these files is lost.
[Analysis: Katrin Tocheva and Sami Rautiainen, F-Secure]