According to reports from Bulgaria, the author of this virus is the same as the one who wrote the Nina virus, and inside the 1600 virus the following message can be found:
Dear Nina, you make me write this virus; Happy new year!
It should not come as a surprise that the author's girlfriend is named Nina.
The 1600 virus infects .EXE and .COM files, increasing their length by 1600 bytes, but COMMAND.COM is overwritten. At least some versions of COMMAND.COM will not work if infected, and infected COMMAND.COM files should be replaced, not disinfected.
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.
N/A