Eight941

Classification

Malware

Virus

W97M

Eight941

Summary

W97M/Eight941 is Word 97 class infector. When an infected document is opened or closed, the virus infects the global template. After that, it infects all documents that are closed or opened.

Removal

Automatic action

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.

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

Beside replication, W97M/Eight941.A adds a password protection to all documents that are opened in Word when it infects. The password is:

8941

Eight941.B

W97M/Eight941.B replicates only when a document is opened. Otherwise, it is functionally identical with W97M/Eight941.A.

Eight941.C

W97M/Eight941.C replicates only when a document is closed. Otherwise, it is functionally identical with W97M/Eight941.A.

Eight941.D

W97M/Eight941.D is a modified variant. This variant does not add the password protection to every document. Instead, it activates its payload at September 1st and November 10th. At this time, the virus searches "C:" -drive for document files and adds a password to each file that it finds. The password is also different:

xyz

Eight941.E

This variant is modified from W97M/Eight941.D. The part that sets the password has been removed.

Eight941.S


Variant:Eight941.D

W97M/Eight941.D is a modified variant. This variant does not add the password protection to every document. Instead, it activates its payload at September 1st and November 10th. At this time, the virus searches "C:" -drive for document files and adds a password to each file that it finds. The password is also different:

xyz


Variant:Eight941.E

This variant is modified from W97M/Eight941.D. The part that sets the password has been removed.


Variant:Eight941.S

Functionally this variant is identical with Eight941.E


Variant:Eight941.C

W97M/Eight941.C replicates only when a document is closed. Otherwise it is functionally identical with W97M/Eight941.A.


Variant:Eight941.B

W97M/Eight941.B replicates only when a document is opened. Otherwise it is functionally identical with W97M/Eight941.A.


Variant:Eight941.A

When an infected document is opened or closed, the virus infects the global template. After that, it infects all documents that are closed or opened. Beside replication, W97M/Eight941.A adds a password protection to all documents that are opened in Word when it infects. The password is:

8941