The Difficulties of Using Domain Age as a General Filtering Criterion
Posted: Mon Feb 10, 2025 10:15 am
Domain and age errors in reverse lookups can be reduced by tracking client DNS queries and matching domains to the requested destination IP address. However, the effectiveness of this method will depend on full visibility of all client DNS queries. In this case, the destination IP address must be determined using a standard DNS lookup or a system that filters by domain age.
Even if the data transfer domain and its age have been determined correctly, this does not eliminate a number of issues that need to be taken into account.
Registrars are free to dispose of, modify, and assign long-established domains to other customers. Resellers have the same rights. This significantly reduces the effectiveness of domain age as an independent filtering parameter, since an attacker can easily acquire an existing, well-known domain with a neutral or even good reputation. A criminal can also register a new domain long before it is used in cyberattacks.
Registering and opening reliable and absolutely safe sites a argentina whatsapp data days or hours before their actual use is standard practice. When domain age is used as a filtering criterion, there is always the problem of false positives and false negatives, between which a balance must be found.
It should also be noted that the age of a domain is a less valuable indicator than the creation date of an individual hostname record. Long-standing domains may have an infinite number of subdomains and individual hosts within those domains, and it is impossible to accurately determine the age of a hostname or the date when the name was associated with an active IP address. It can only be determined that the destination host is part of a domain that was registered at some point in the past.
Even if the data transfer domain and its age have been determined correctly, this does not eliminate a number of issues that need to be taken into account.
Registrars are free to dispose of, modify, and assign long-established domains to other customers. Resellers have the same rights. This significantly reduces the effectiveness of domain age as an independent filtering parameter, since an attacker can easily acquire an existing, well-known domain with a neutral or even good reputation. A criminal can also register a new domain long before it is used in cyberattacks.
Registering and opening reliable and absolutely safe sites a argentina whatsapp data days or hours before their actual use is standard practice. When domain age is used as a filtering criterion, there is always the problem of false positives and false negatives, between which a balance must be found.
It should also be noted that the age of a domain is a less valuable indicator than the creation date of an individual hostname record. Long-standing domains may have an infinite number of subdomains and individual hosts within those domains, and it is impossible to accurately determine the age of a hostname or the date when the name was associated with an active IP address. It can only be determined that the destination host is part of a domain that was registered at some point in the past.