Summary
Forgotten is a worm written in Visual Basic Script that speads without any attachment.
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:Forgotten.A
This worm spreads via Outlook, mIRC and Pirch. It spreads immendiately after an infected message has been opened, if and only if the security settings of Internet Explorer has been set to "Low" level.
Forgotten does not send any attachments. Instead, the worm code is embedded into the HTML formatted message body.
Once a user opens an infected message, the embedded script in the HTML message will drop a file 'vb1.com.vbs' into both Windows and Windows System directories, and a copy from Windows directory is executed.
Next the worm sends infected message to each recipient listed in the address book. The infected message look as follows:
Subject: RE: FINANCING Body: You need ActiveX enabled if you want to see this email. Please open this message again and click accept ActiveX Microsoft Outlook
The worm modifies the registry and it will not send itself again.
If the Internet Explorer security settings have been lowered, and the worm executes, the following message will be shown:
YOU WILL NOT FORGET THIS MOMENT, NEVER!
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