How DNS History Can Help in Security Investigations 2022 Tip


This tutorial discusses how DNS history can help with security investigations. We will do our best for you to understand this guide. I hope you will like this blog How DNS History Can Help with Security Investigations. If your answer is yes, please share after reading this.

Check how DNS history can help with security investigations

DNS monitoring is used to manage and ensure the security of round-trip communications between browser users and the websites and services they use. Whether your business is responsible for managing one or multiple website domains, DNS monitoring can help diagnose problems quickly, prevent targeted attacks, and easily spot security breaches that may occur. Effective DNS monitoring involves regularly checking DNS records for unexpected changes or local outages (whether due to manual error or hacking). This allows your team to quickly identify and resolve any issues that may negatively affect your site or the security of your users who need access to your site.

The Domain Name System (DNS) contains records that contain information about a specific domain name. These records include, but are not limited to, the corresponding Internet Protocol (IP) address, Mail Exchange (MX) server, and Name Server (NS). use malicious software. And these days, organizations have every reason to make cybercrime protection a top priority, because it could be very costly not to do so. These domains and subdomains are not flagged as malicious, so they may not be flagged by security systems that do not implement IP-based blocking and monitoring. However, since they are the only ones to resolve the malicious IP address (at least at the time of writing), this could indicate suspicious activity.

DNS history can help in security investigations

Detect potentially malicious domains

Therefore, monitoring DNS history is essential for businesses, and here are three specific reasons why. One of the most important pieces of information DNS history provides is a list of domain names that resolve to the same IP address. For example, the malicious IP address 157[.]230[.]221[.]198 is associated with delta9k[.]com and five of its subdomains, including mumble[.]delta9k[.]com and register[.] delta9k[. ]com.

These domains and subdomains are not flagged as malicious, so they may not be flagged by security systems that do not implement IP-based blocking and monitoring. However, since they are the only ones to resolve the malicious IP address (at least at the time of writing), this could indicate suspicious activity. Networks are best protected when security teams examine traffic to and from these domains and subdomains.

Several types of cyberattacks can be mitigated by discovering domains associated with malicious IP addresses. Phishing and malware campaigns are among them, as they use domain names as weapons.

Help prevent and recover from DNS hijacking

Regularly monitoring your DNS history records will help you catch signs of DNS hijacking, a common type of DNS attack. DNS hijacking occurs when hackers change your DNS settings after gaining unauthorized access to your system. They can then change the IP resolutions to redirect their website visitors to a website under their control.

This website serves as a gateway for attackers to steal sensitive information from users on your network. However, if you can immediately detect a sudden change in IP resolution by monitoring DNS history, you can investigate and mitigate attacks before they do more damage. Access to your historical DNS records also allows them to be restored and to fix changes made by attackers.

Protect brand reputation

Prevention and early detection of cyberattacks is a form of brand protection, as these processes help you avoid reputational damage caused by cybercrime. In addition to questionable IP addresses, DNS history allows you to avoid suspicious cyber resources, such as NS and mail servers, which could be used by attackers by detecting them before allowing them access to your network.

DNS history also helps detect malicious command and control (C&C) servers. This allows organizations to combat Denial of Service (DoS) attacks, in which a network of computers known as a “botnet” sends fake requests to a website until it fails and does not no longer available to legitimate visitors. Botnets usually communicate with C&C servers, so shutting down those servers would help stop the attack.

Final Words: How DNS History Can Help Security Investigations

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