DNS hijacking is a serious threat that can compromise the security and integrity of your server. In this guide, we will walk you through the steps to fix DNS hijacking in WHM cPanel, ensuring your server remains secure and your website visitors are directed to the correct destinations.

Understanding DNS Hijacking

DNS hijacking, also known as DNS redirection or DNS poisoning, is a malicious practice where a cyber attacker intercepts and alters DNS queries, redirecting users to fraudulent websites. This can lead to various security risks, including phishing attacks, data theft, and malware infections.

Step 1: Identifying the Signs of DNS Hijacking

Before taking corrective action, it's crucial to recognize the signs of DNS hijacking. Common indicators include unexpected website redirects, SSL certificate errors, and suspicious changes in DNS settings within WHM cPanel.

Step 2: Perform a Comprehensive Security Audit

Begin by conducting a thorough security audit of your WHM cPanel server. Check for any unusual activity, unauthorized access, or suspicious log entries. This will help identify the extent of the breach and provide valuable insights for mitigation.

Step 3: Update WHM cPanel and System Software

Outdated software can be a vulnerability that attackers exploit. Ensure WHM cPanel and all associated software are up to date. This includes the operating system, web server, PHP, and any other relevant components.

Step 4: Review DNS Settings

Access the DNS Zone Editor in WHM cPanel and carefully review the DNS records. Look for any unauthorized changes, such as altered A or CNAME records. Correct any discrepancies and ensure all records point to the correct IP addresses.

Step 5: Change Passwords

Change all passwords associated with WHM cPanel, including the root password, cPanel accounts, and FTP credentials. Use strong, complex passwords and consider implementing multi-factor authentication for an added layer of security.

Step 6: Scan for Malware and Malicious Code

Perform a thorough malware scan on your server using reputable security tools. This will help identify and remove any malicious code that may have been injected into your website files.

Step 7: Monitor Network Traffic

Utilize network monitoring tools to keep a close eye on incoming and outgoing traffic. Look for any suspicious patterns or anomalies that could indicate ongoing malicious activity.

Step 8: Implement Firewall Rules

Configure a robust firewall to filter incoming traffic and block any suspicious requests. This can help prevent further unauthorized access and protect your server from future DNS hijacking attempts.

Step 9: Set Up Intrusion Detection and Prevention Systems (IDPS)

Implement an IDPS to actively monitor for and respond to suspicious activities. This system can help detect and thwart DNS hijacking attempts in real-time.

Step 10: Educate and Train Users

Educate your team members and users about best practices for online security. This includes recognizing phishing attempts, avoiding suspicious links, and using strong, unique passwords.

Conclusion

DNS hijacking can have severe consequences for your server's security and your website's reputation. By following these steps, you can effectively identify and fix DNS hijacking in WHM cPanel. Remember, maintaining a proactive approach to security is key in preventing future attacks. Stay vigilant, keep your software up to date, and continuously monitor your server for any signs of suspicious activity.