Cabir.AI is a minor variant of Cabir.AA. The only significant difference is that Cabir.AI has different image to display and edited text in the dialog. For more details, see the description of Cabir http://www.f-secure.com/v-descs/cabir.shtml
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 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.
Cabir.AI is a minor hexedit variant of Cabir.AA, and with the exception of a new filename, new image to display and different text being displayed at the beginning of the worm's code, Cabir.AI behaves identically to Cabir.AA.