The EICAR website is generally considered to be a safe and reputable site within the cybersecurity community. EICAR stands for the European Institute for Computer Antivirus Research, and it's known for providing the EICAR test file. This is a harmless piece of code that you can use to test antivirus software. When you download this file, your antivirus should detect it as if it were malicious, even though it actually isn't. This helps you make sure your antivirus software is working correctly.
Think of it like a fire drill for your antivirus software. Just like a fire drill tests whether everyone knows how to exit the building safely, the EICAR test file tests whether your antivirus knows how to detect a "threat."
However, always exercise caution when downloading anything from the internet, even from reputable sites. Make sure you are on the genuine EICAR website, and always keep your antivirus and other security software up to date.
Testing your Antimalware
Scroll down to the download section on the right
Download a few of the Eicar test files. I had to download a second time for them to be picked up.
Examine the alerts, which you can see 3/4 of the way through the video
Major Timestamps
00:32 Save as from page (instead of opening files)
00:48 I ran (AVG) antivirus check as it hadn't done anything the first time. I do speed up the video.
00:56 I ran full virus scan to see if the files ever made it to my hard drive
1:15 I try again and then AVG blocks the files
2:42 5 Notifications at the top (to check what happened)
2:55 Change Firewall settings