EICAR  Tags: security, my server.
The EICAR test file [is a file] to test the response of computer antivirus (AV) programs. The rationale behind it is to allow [you] to test [AV software] without having to use a real computer virus that could cause actual damage should the AV not respond correctly. (From wikipedia.org). Also it's often much easier to create an EICAR file than find real malware.

Do not ever put this file on your domain. You'll be banned from the web by companies like Bitdefender. They'll detect