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To mitigate attacks on a webserver from the Internet, it’s crucial to implement security measures that control the traffic reaching the server and provide an additional layer of abstraction.

A. Create an ACL on the firewall to allow only TLS 1.3: This step ensures that only secure, encrypted traffic using the latest version of the TLS protocol can reach the webserver. TLS 1.3 includes improvements over previous versions that enhance security and performance, making it a strong choice for protecting web traffic.

B. Implement a proxy server in the DMZ network: A proxy server acts as an intermediary between users on the Internet and the webserver. It can provide additional security features like content filtering and load balancing. By processing requests and responses through the proxy, direct access to the webserver is avoided, reducing the attack surface.

Options C and D are less effective in this context: C. Create an ACL on the firewall to allow only external connections: This would not be a mitigation step, as it does not restrict the type of traffic or provide additional security measures. D. Move the webserver to the internal network: This could potentially expose the internal network to more risks if the webserver is compromised. It’s generally safer to keep public-facing services in a DMZ.

According to the General Data Protection Regulation (GDPR), ensuring the confidentiality, integrity, and availability of data is a fundamental aspect of data security. One of the key measures to achieve this is by conducting a data protection impact assessment (DPIA). A DPIA helps to systematically analyze, identify, and minimize the data protection risks of a project or plan. It is a process for building and demonstrating compliance with the GDPR and should be conducted for processing operations that are likely to result in a high risk to the rights and freedoms of natural persons12.

 Once the SOC analyst has stopped the malware from spreading and identified the attacking host, the next step in the incident response workflow is eradication and recovery. This involves removing the malware from all infected systems and restoring affected systems to normal operation. It’s important to ensure that the malware is completely eradicated to prevent it from reactivating or spreading