DNS Tunneling
DNS tunneling is a technique used to bypass security measures by using the Domain Name System (DNS) to send data that would normally be blocked or restricted. It works by encoding the data within DNS queries or responses, which are then sent to and from the attacker’s command and control server.
To put it simply, it’s like hiding a secret message inside a regular conversation. The attacker sends DNS requests that contain the hidden message and the server responds with DNS responses that hold the actual information. In this way, the attacker can send and receive information without being noticed or blocked by security measures.
DNS tunneling can be used for malicious purposes, such as stealing data, spreading malware or controlling compromised systems. It is therefore important for businesses and individuals to put measures in place to detect and prevent DNS tunneling attacks.