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Strengthen Your Investigations’ Resolve with pDNS

ID: 79ca06a3-c78b-5f00-9a29-821d76f36bd4

STIX ID: report--79ca06a3-c78b-5f00-9a29-821d76f36bd4

Feed Name: DomainTools

Date Published: 2026-01-23

Date Updated: 2026-04-27

Author: domaintools.com

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This document introduces passive DNS (pDNS) and details how DomainTools’ Iris Investigate platform uses curated pDNS sources with pivoting and guided pivots to uncover infrastructure links, detect DNS tunneling, track fast flux changes, predict BEC setup via SPF/DKIM, and identify DNS hijacking; it emphasizes the value of historical DNS visibility and integration with WHOIS, IP, NS, and SSL datasets for comprehensive investigations.

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