After some research, we found out that all customers impacted are using Kapersky.
Kapersky is blocking the downloading of the static files needed for the website to run (style, script, and so on).
There's nothing particular here, thousands of websites use Amazon Web Service S3 to host their static files, and it seems like you block Amazon url for no reason, impacting a lot of businesses. I'm pretty sure there's nothing dangerous for the user in our couple CSS and JS files, particularly downloading them while they come on our website by their own choice. That's just a basic way to run a website...
We are unsure what to answer them. We tried to guide them on how to unblock us, but it seems quite complicated for people who don't know their way around a computer. And also, it cost us a lot of ressources to do the assistance for your services.
Until this is solved, we are guiding them on how to switch to an other antivirus not blocking our website, because I do believe you are the only one struggling with AWS S3...
Best answer by Schulte
in the meantime, I was able to reproduce the problem.
Amazon Web Service S3 is not completely affected, only your subdirectory 'xxxxxxxxxxxxxxx.s3.amazonaws.com/public/'.
The Anti-Virus Lab has been informed and will re-examine the site.
The result may take some time, I will pass it on as soon as possible
URL was removed from blacklist. It will be fixed in the next update. Thank you for your help.
Best regards, Xxxxxxxxxx Xxxxxxxxx, Malware Analyst