Cantando is a simple non-resident virus which infects other COM files by placing a copy of it's own code to their end.
Cantando deletes CHKLIST.MS files from directories it infects, thus by-passing checksummer of MSAV.
Cantando activates on the 24th of December, any year. At this date it displays the following message:
* CaN_TaN_Do_v01 : "Onkos taalla kiltteja lapsia?-)"
The text is Finnish and means; "do we have any well-behaved children here?" After this the virus crashes the machine.
The whole virus is encrypted.
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.