Unverified60% confidenceFactExact time
DNS tunneling transmits data by encoding it into the domain name portion of DNS queries, which are then resolved and responded to by an authoritative DNS server set up by the controlling party.
2
Sources
60%
Confidence
Long-term
Relevance
9/27/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedNearly all network environments allow DNS query traffic to pass through, making it susceptible to abuse as a channel for data exfiltration or command delivery.80% similarUnverifiedDNS tunneling is commonly used to bypass the authentication portals of paid Wi-Fi networks, or as a covert communication channel (C2 channel) for malware.79% similarUnverifiedDNS rebinding attacks exploit the flexibility of the TTL mechanism in the DNS protocol to bypass browser same-origin policies based on domain names by rapidly switching domain name resolution.77% similarUnverifiedIn the self-hosted server scenario, if the firmware hardcodes the official server address, developers need to redirect traffic to the local machine through DNS hijacking or modifying hosts.73% similarVerifiedDNS is essentially a distributed hierarchical database responsible for translating human-readable domain names into machine-routable IP addresses, starting from the root zone and going down through top-level domains, second-level domains and subdomains, with each layer independently managed by different organizations, forming a delegation structure.73% similar
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