This technical exploration demonstrates how a large‑scale DNS investigation can be conducted using DomainTools software. The analysis begins with a broad DNSDB flexible‑search phase to locate domain names containing a specific string, such as “ibm,” yielding millions of results across many top‑level domains and resource record types. DomainTools then helps analysts refine the dataset through time‑based filtering, record‑type selection, and exclusion rules that remove domains owned by the target organization and trusted institutional extensions. By narrowing the scope in a structured way, the software enables users to focus only on suspicious or relevant domains, significantly accelerating threat‑hunting and domain‑risk analysis while reducing noise and improving the quality of follow‑up in

Join for free to read