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Unexpected Blockage of Web Server Ports by Malwarebytes Nebula


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Hello,

I recently encountered an issue with Malwarebytes Nebula on my AWS Windows EC2 instance which I use for hosting a web server. After installing Malwarebytes Nebula, my server stopped serving content to the web even though I was still able to reach the server locally via localhost.

Upon investigating, I discovered that port 80/443 traffic wasn't making it inbound to the instance.

To resolve the issue, I had to manually open the necessary ports in the firewall.  This was working before, so the ports were open prior to the installation.  I was wondering if this is an expected behavior from Malwarebytes Nebula? Is there a way to prevent this automatic closure of ports during or after installation, particularly for those essential to a web server?

Thanks for your time and assistance.

Best regards,

mscott

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