You have installed antivirus software and you want to be sure that your AV signatures are working correctly. You don’t want to risk the deliberate introduction of a live virus to test the AV software. You would like to write a harmless test virus, which is based on the European Institute for Computer Antivirus Research format that can be detected by the AV software.

How should you proceed?

A.
Type the following code in notepad and save the file as SAMPLEVIRUS.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it.
X5O!P%@AP[4\PZX54(P^)7CC)7}$SAMPLEVIRUS-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

B.
Type the following code in notepad and save the file as EICAR.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it.
X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

C.
Type the following code in notepad and save the file as AVFILE.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it.
X5O!P%@AP[4\PZX54(P^)7CC)7}$AVFILE-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*

D.
Type the following code in notepad and save the file as TESTAV.COM. Your antivirus program springs into action whenever you attempt to open, run or copy it.
X5O!P%@AP[4\PZX54(P^)7CC)7}$TESTAV-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*