The best way to test your anti-virus software

I have not tried it on the Internet. I don't know if it is useless. Let's take a look.
The best way to test your anti-virus software! Let's try it.
The simplest and safest way to test anti-virus software
The European Institute of anti-virus development (EICAR) provides a file: The EICAR standard anti-virus test file, which is a test standard provided by anti-virus software vendors worldwide to check the installation of anti-virus software. You can easily create this file:

 

Open notepad and copy the following line of text to save the file. Select "all files" for the file type and the file name is "EICAR. COM ".

X5O! P % @ AP [4PZX54 (P ^) 7CC) 7} $ EICAR-STANDARD-ANTIVIRUS-TEST-FILE! $ H + H *

After the copy is successful, the generated file should be 69 or 70 bytes long.
Now you can use your anti-virus software to check this file. If the report finds a virus (in fact, this file is only used for testing, not virus ), it indicates that your anti-virus software has been successfully installed on your computer and has been effectively maintained on your computer.

Again, this file is not a virus!

Delete this file after detection to avoid further misunderstanding.

The Norton homepage explains this:
The Eicar Test String is not a real virus. it is a text file that is used to test antivirus software. by default, the file name is Eicar.com, but it cocould be renamed to any other name