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.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
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.