This is the oldest ancestor of the Jerusalem virus. On April 1st an infected computer will display the following message:
APRIL 1ST HA HA HA YOU HAVE A VIRUS.
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.
Variant:Argentina, Xuxa, Anti-D, Dad
Several variants from Argentina, and probably all written by the same person. The first is 1249 bytes long and activates on various dates that are of patriotic significance in Argentina. The second is 1413 bytes long, and reported to play music in the afternoon. The third is 945 bytes and interferes with the "D" key on the keyboard. The last one is almost identical to the original - just with text messages translated to Spanish.