Evolution of DNS tunneling & 4 ways to minimize risk

TLDR:

• DNS tunneling is a popular attack method that encodes data in DNS queries or responses.
• Organizations can reduce the risk of DNS tunneling by monitoring DNS traffic, implementing zero trust architecture, and using protective DNS solutions.

Article Summary:

Attacks related to Domain Name System (DNS) infrastructure have been increasing, with DNS tunneling being a major concern for organizations. DNS tunneling allows bad actors to establish a command-and-control channel to a victim’s computer, bypassing traditional defenses. Monitoring DNS traffic is crucial in detecting this activity, as many organizations are not actively monitoring or securing their DNS infrastructure.

To reduce the risk of DNS tunneling, organizations should consider implementing zero trust architecture and using protective DNS solutions. Behavior monitoring, such as looking for abnormal domain name lengths or patterns in DNS traffic, can help detect suspicious activity. DNS attacks, including tunneling, are likely to continue evolving, so it’s important for organizations to stay vigilant and adapt their security strategies accordingly.