DNS is a crucial component of the internet, responsible for translating domain names into IP addresses. Unfortunately, cybercriminals have found ways to exploit DNS for malicious purposes. Three common techniques are Fast Flux, oversized DNS queries and responses, and tracking unique DNS queries to domains. Identifying and blocking these techniques is essential to keeping your network secure.
Fast Flux is a technique used by botnets to hide the true location of their command and control (C2) servers. The botnet operator constantly changes the IP address of the C2 server by quickly rotating through a large number of compromised hosts acting as proxies. This makes it difficult for security teams to block access to the C2 server. Our solution that detects Fast Flux DNS requests can help you identify and block botnet activity.
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Oversized DNS queries and responses can also indicate malicious activity. Attackers may use oversized queries to hide data exfiltration or send commands to malware. Oversized responses can be used to hide the true content of the response or launch denial of service attacks. Our solution that detects oversized queries and responses can help you identify and block these attacks.
Tracking unique DNS queries to domains is another technique used by attackers. Cybercriminals use unique domain names to bypass firewalls and other security measures. Our solution tracks unique DNS queries to domains can help you identify and block malicious activity.
Low-throughput exfiltration and DNS command and control traffic are additional threats that can be detected by our solution. Attackers may use low-throughput exfiltration to avoid detection. Instead of sending large amounts of data at once, they send small amounts over a long period. Our solution detects low-throughput exfiltration can help you identify and block this type of attack.
DNS command and control traffic involves using DNS requests and responses to communicate with malware. This can be difficult to detect because DNS traffic is common and often ignored. Our solution detects DNS command and control traffic can help you identify and block this type of attack. Our IDS solution can detect Fast Flux DNS requests, oversized DNS queries and responses, tracking unique DNS queries to domains, low-throughput exfiltration, and DNS command and control traffic. With our secure solution, you can protect your network from DNS-based attacks and keep your data secure.
