How to recover from a router attack?

Recovering from a router attack involves several steps to ensure the security and integrity of your network. Here's how you can do it:

1. Isolate the Affected Router: Immediately disconnect the affected router from the network to prevent further damage or spread of the attack.

2. Change Credentials: Change all passwords and credentials that were used on the router. This includes the router's admin password, Wi-Fi passwords, and any other relevant credentials.

3. Update Firmware: Ensure that your router's firmware is up to date. Manufacturers often release updates to patch security vulnerabilities. Check the manufacturer's website for the latest firmware version and follow their instructions for updating.

4. Perform a Factory Reset: If you cannot update the firmware or if you suspect the router is severely compromised, performing a factory reset can restore it to its original settings. Note that this will erase all custom configurations, so back up any important settings first.

5. Scan for Malware: Use a reputable security tool to scan your network and devices for malware or other malicious activities that may have been introduced during the attack.

6. Review Logs: Check the router logs for any suspicious activities or unauthorized access attempts. This can provide insights into the nature of the attack and help in strengthening security measures.

7. Strengthen Security Measures:

   • Enable WPA3 encryption for your Wi-Fi network if supported.
   • Disable remote management features unless absolutely necessary.
   • Enable firewall settings on the router and ensure they are properly configured.
   • Regularly update all devices connected to the network with the latest security patches.

8. Monitor Network Activity: Continuously monitor your network for any unusual activities or signs of compromise. Use network monitoring tools to detect anomalies.

9. Consult with a Professional: If you are unsure about how to proceed or if the attack was severe, consider consulting with a cybersecurity professional who can provide tailored advice and assistance.

Example: Suppose your router has been compromised, and you notice slow internet speeds and unauthorized devices connected to your network. You would first disconnect the router, change all passwords, update the firmware, and perform a factory reset if necessary. After restoring the router, you would scan your network for malware, review logs for suspicious activity, and strengthen security measures like enabling WPA3 encryption and disabling remote management.

For additional security and reliability, consider using cloud-based services like Tencent Cloud's Anti-DDoS Pro, which provides robust protection against various types of cyberattacks, including those targeting routers and networks.