Additional notes:
(1) This file used to be named ducklin.htm or ducklin-html.htm or similar based on its original author Paul Ducklin and was made in cooperation with CARO.
(2) The definition of the file has been refined 1 May 2003 by Eddy Willems in cooperation with all vendors.
(3) The content of this documentation (title-only) was adapted 1 September 2006 to add verification of the activity of anti-malware or anti-spyware products. It was decided not to change the file itself for backward-compatibility reasons.

http://www.eicar.org/anti_virus_test_file.htm