SWF.LFM.926 is a Flash infector, infecting Macromedia Flash files with SWF extension.
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 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.
This is the first virus of its kind. However, it is not an urgent threat as the virus can not jump from a web page to an end user machine during normal surfing. The only way it can succesfully spread is that the SWF file is downloaded manually, placed to a directory which contains clean SWF files and then executing the file with Macromedia Flash Player.
SWF.LFM.926 uses the Macromedia Flash's ActionScript scripting system to spread. While infecting other files, it shows a display saying "Loading Flash Movie".
SWF.LFM has not been found in the wild. It is not considered to pose any threat at the moment. Nevertheless, it's the first virus of its kind.
[Mikko Hypponen, F-Secure Corporation, January 8th, 2002]
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