Summary
W97M/Gullible is a Word 97 macro virus that replicates when an infected document is opened. It infects the global template and all documents that are currently open. After the global template is infected it also infects all documents created, opened or closed after that.
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
Variant:Gullible.A (MFV)
If the name of the registered user is "S. Bach", and an infected document is opened the virus displays a message in German:
Ich bin wieder hier!
which means "I'm here again!" in English.
At March 19th the virus activates its payload when an document is closed. At this time the virus will change the shape of Word window to a circle.
Then it uses Office Assistant to show two messages. The first message is:
(DocumentName) was infected by MFV (My First Virus)
where "(DocumentName)" is replaced with either the document name or the name of the global template, "Normal.dot".
The second message is:
This virus is not harmful. Belive me! Your window was only deformed, not more! This virus is freeware. You may give it to anyone!
After the virus has modified the appearance of the Word window, it has to be closed from task bar or using a hot key (Alt+F4) since the menu bar is partially invisible.
Protect your devices from malware with F‑Secure Total
Protecting your devices from malicious software is essential for maintaining online security. F‑Secure Total makes this easy, helping you to secure your devices in a brilliantly simple way.
Award‑winning antivirus and malware protection
Online browsing, banking, and shopping protection
24/7 online identity and data breach monitoring
Unlimited VPN service to safeguard your privacy
Password manager with private data protection
Choose how many devices you want to protect to get started.
Free customer support
Cancel anytime
The trial does not obligate you to buy the product
After 30 days your subscription will renew automatically for one year at €69.99.
)
)
More Support
Community
Ask questions in our Community.
User guides
Check the user guide for instructions.
Contact Support
Chat with with or call an agent.
Submit a Sample
Submit a file or URL for analysis.