Test your antivirus code (not viruses)

Copy the following code into Notepad, save it as a text file, and then watch the antivirus software change. If there is a reaction, then you can initially rest assured that ... If not reflected, quickly change antivirus software.
Take a look at your anti-virus software to see the reflection, it is not very lazy.

[Disclaimer: This non-virus]

X5o! p% @AP [4/pzx54 (p^) 7CC) 7} $EICAR-standard-antivirus-test-file! $H +h*

This code is EICAR, is the European Computer Anti-Virus association and anti-virus software manufacturers to develop a test file, wherein the signature has been included in a variety of antivirus software virus code library, so can be used to test virus scanning engine.
Just test whether the antivirus software is working, rather than evaluating the strength of the anti-virus ability