lol? I know this string since a long time ago, it's called eicar's test string.
Official website:
http://www.eicar.org/anti_virus_test_file.htm
and here's a write up by norton
http://www.symantec.com/security_res...121611-3209-99
Besides that "5- If your Antivirus software didn't appear alert dialog box, meaning your Antivirus software is not working good, I think you must update for this software or change a new Antivirus software" has nothing to do with it, since it's not a real virus, it's a test string made to check your av, but some companies have not added it, since they see no reason in it, since it's not harmful.
But I know most av programs detect it. When the file is saved it will likely make a pop-up in a random color, where it says it's a test string.
Btw, I must warn some people, some av programs, can think it is a virus, but it will not be sure, so you will maybe not be able to delete the file, so therefore I recommend you don’t place the file on your desktop.
have fun.
For the fun I got it scanned by 32 av programs, here are the results. So if you don't feel like downloading it, just check if your av program detects it.
All those numbers is the date the av program was last updated.