Threat Description

Akuma

Details

Aliases: Akuma, Akuma.A
Category: Malware
Type: Virus
Platform: W97M

Summary



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.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details



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 follows:

  Title:    Akuma Macro Carrier
    Subject:  Akuma
    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 name.

The original content of these files is lost.





Description Created: Analysis: Katrin Tocheva and Sami Rautiainen, F-Secure


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