Threat Descriptions

Wallpaper

Classification

Category :

Malware

Type :

Virus

Platform :

W32

Aliases :

Wallpaper, Pirate

Summary

WM/Wallpaper is a Word macro virus.

Beside replication, the virus activates its payload on every 31th day of each month. At this time, it attempts to replace the Windows desktop's wallpaper with a picture of a skull. This picture is saved to "c:\windows\temp\sk2.bmp".

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

It also modifies the "c:\autoexec.bat" and "c:\windows\win.ini" to perform the changes to the user's desktop.

Based on the system time, it shows a message box with the same image and the following text: 

The [PIRATE VIRUS] pillaged your computer!

The message box contains a single button labeled as:

GO BACK TO MS-WORD??