What is the European Institute For Computer Antivirus Research (EICAR) standard virus test?

A. The EICAR group has created a standard file for testing the effectiveness of antivirus software. The test file appears to be a virus to these antivirus products, but is actually a harmless stream of 68 ASCII characters:


The test file is available on the EICAR Web site in the following four formats:

  • A virus in a Web page
  • A virus in a downloadable text file
  • A virus in a downloadable zip file
  • A virus in a zip file in a downloadable zip file
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