Detecting whether your router is under attack involves monitoring for unusual network activity and signs of unauthorized access. Here are some indicators and steps to help you identify a potential attack:
Unusual Traffic Patterns: Monitor your network traffic for spikes or patterns that are not typical for your usage. For example, a sudden increase in outbound data could indicate data exfiltration.
Slow Network Speeds: If your internet connection is slower than usual, it might be a sign that your router is being overwhelmed by traffic from a DDoS (Distributed Denial of Service) attack.
Frequent Disconnections: Repeated disconnections from the internet or your Wi-Fi network can be a sign of an attack, as attackers might be trying to disrupt your connection.
Changed Router Settings: If you notice changes to your router's settings or configurations that you didn't make, it could indicate unauthorized access.
Unfamiliar Devices: Regularly check the list of connected devices on your router. If you see unfamiliar or unexpected devices, someone might have connected to your network.
Router Firmware Updates: Be wary of unexpected firmware updates. While routine updates are normal, unexpected ones could be a sign of compromise.
Strange Websites and Downloads: If you or your users are redirected to strange websites or experience unexpected downloads, it could be a sign of a man-in-the-middle attack.
Example: You notice that your internet speed has significantly dropped, and your router's lights are flashing erratically. Upon checking the connected devices, you see an unfamiliar device that wasn't there before. This could indicate that your router is under attack.
Recommendation: To enhance security and monitor your network effectively, consider using services like Tencent Cloud's Network Security Services. These services provide advanced threat detection and protection features to help secure your network infrastructure against various attacks.