Countermeasures Against Viruses

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Background: When you receive e-mail with an attachment and execute the file on your machine, you get this message:


‘EICAR-STANDARD-ANTIVIRUS-TEST-FILE!’

In Notepad or TextEdit, you see the below string:

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


Q: Which countermeasure should you take?


a. Run your antivirus program.

b. No action necessary.

c. Search for files that match the name of the attachment and remove them from your drives.

d. Shut down or restart your system and check to see what processes are running.

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