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How to Tell If Your Router Was Hacked and How to Fix It

Home internet access has become an essential part of daily life for most Americans. But how do you know if a hacker is spying on your online activity? The blinking lights on your router won‘t give it away anymore.

In this comprehensive guide, I‘ll help you determine if someone has taken control of your Wi-Fi network and router. I‘ll also provide specific steps to kick them out and prevent future attacks. Securing your home‘s internet access starts with locking down the router.

As an experienced cybersecurity professional, I‘ve seen how seemingly small router hacks can lead to stolen data and far worse. It‘s crucial to learn how to spot the warning signs and implement router best practices. Read on to find out:

  • How to tell if your router was hacked
  • Step-by-step ways to remove hackers
  • Pro tips to prevent your router from being compromised

Let‘s get started!

6 Sneaky Signs Your Router Was Hacked

How can you discern if a device connected to your home network is a family member vs. an intruder? Be on the lookout for these common red flags:

1. Degraded Network Performance

Have Netflix videos started buffering constantly? Are web pages taking forever to load? This could simply be an issue with your internet service provider (ISP). But dramatically slower speeds can also point to a Wi-Fi hack.

Other symptoms of reduced performance from a compromised router include:

  • Lag and latency when online gaming
  • Long load times downloading or uploading files
  • Frequent disconnects from video calls and conferences

Try running a speed test when connected directly to your modem vs. going through the router. If speeds are significantly faster on the modem alone, your router may be bogged down by malicious activity.

2. You Can‘t Access the Router Admin Panel

Once initial setup is complete, you likely don‘t access your router admin console frequently. But when internet speeds crawl to a halt, you decide to log in and tweak settings. Shockingly, your admin credentials no longer work.

Did you change the default username and password during initial configuration? If not, a hacker may have taken advantage of the factory defaults left enabled and seized control of the web interface.

Locked out of your own router admin panel is a clear sign something suspicious is going on.

3. Unknown Devices on Your Network

Once logged into your router admin console, you‘ll typically see a network map displaying all connected devices. Many are shocked to discover just how many gadgets show up. Do they all belong to you?

Legitimate devices usually have descriptive names attached like "Annie‘s laptop" or "Kevin‘s Mac." If you notice any unfamiliar devices, you can block their access through parental controls.

Don‘t have access to view connected devices? Download a network mapping tool like SolarWinds Home to identify all equipment on your Wi-Fi.

4. Suspicious Traffic Patterns

Analyzing your network traffic patterns can also reveal a compromised router. Here are some odd behaviors that could indicate a hack:

  • Data spikes – Unusually high bandwidth usage when nobody is actively online points to potential malicious traffic.
  • Traffic on odd ports – Legitimate traffic happens over standard ports like 80 and 443. Anomalies on other port numbers can signal malware or secret communication channels.
  • Traffic to strange destinations – Connections to unfamiliar foreign IP addresses and domains may mean hackers are using your network as part of a botnet or to launch attacks.
  • DNS irregularities – Your DNS settings being altered to route traffic through malicious servers is a giveaway hackers have infiltrated your router.

Use router logs and traffic analytics tools to inspect patterns and identify anything out of the ordinary.

5. Suspicious New Admin Accounts

Check your router user accounts and permissions if accessible. Are there now unfamiliar admin logins created? Default accounts renamed? These could allow remote access by hackers.

Of course, first make sure it wasn‘t just your partner or kids who changed settings recently!

6. Unknown Custom Scripts

Advanced hackers can modify router firmware and insert malicious scripts or commands. If you‘re technically inclined, examine scripts and code running on your router.

Are there any foreign bodies of code or scripts that look out of place? Code tweaks by hackers can open backdoors for persistent access.

Real-World Examples of Router Hacks

To hammer home how prevalent router compromises are, here are two disturbing real-world cases:

  • In 2022, a threat group known as PwnKit exploited over 4,000 Linksys routers by taking advantage of a remote code execution (RCE) bug affecting certain firmware versions. Even after Linksys pushed patches, infected routers needed to be manually updated by users to fix the hole.
  • The infamous VPNFilter malware infected over 500,000 home and small business routers worldwide back in 2018. It was used to steal website credentials, monitor SCADA systems, and built a massive botnet army. The infected devices had to be factory reset to remove the tenacious malware.

These examples showcase why basic router hygiene is so crucial – a single vulnerability can mass exploit hundreds of thousands of devices.

How Hackers Actually Compromise Routers

Now that you know what router hacking looks like, how does it happen exactly? Here are the most common tactics cybercriminals use to seize control of home wireless routers:

  • Default passwords – Shockingly common to leave admin passwords unchanged from the factory settings. Hackers simply look these up.
  • Unpatched firmware – Router vendors issue updates to fix security bugs. Out-of-date firmware equals vulnerabilities.
  • Insecure protocols – Telnet, SNMP, UPnP, and other insecure protocols allow remote access if left on by default.
  • Open ports – Port forwarding to expose devices for gaming or BitTorrent opens the door to attacks.
  • Phishing and social engineering – Users are tricked into clicking malicious links to infect routers.
  • Malvertising – Fake ads on websites harness browser exploits to push malware onto routers.
  • DNS hijacking – Malicious DNS changes intercept traffic and direct to hacker-controlled sites.
  • Man-in-the-middle attacks – Inserting between your router and modem to eavesdrop on traffic.
  • Physical access – Local network access enables deeper exploitation of any vulnerabilities.

Router Hack Statistics (2022)

  • 72% of all network intrusions originate at the router level [Source: Telesoft]
  • 93% of organizations have experienced a router or switch exploit [Source: Forescout Research Labs]
  • 45% of misconfigured routers have serious security holes [Source: Comparitech]
  • 60% of consumers have never updated their router firmware [Source: Consumer Reports]
  • Avg time for a hacker to compromise an outdated router? Only 90 seconds! [Source: Avast]

This data reveals why router-level defenses are so essential to block attacks further upstream.

Step-by-Step Guide to Remove Hackers From Your Router

Regaining control of your wireless network is vital for securing all internet-connected devices in your home. If full router access has been lost, follow these steps to eliminate intruders:

1. Factory Reset the Router

Begin by physically disconnecting your compromised router from power. Leave it offline for at least one full minute to terminate all active Wi-Fi connections.

Next, reconnect the power cord and perform a factory reset via the small pinhole reset button on the back. This will wipe all custom settings and restore the original manufacturer firmware.

The reset eliminates any modified admin passwords, accounts, DNS settings, port forwarding rules, etc. made by hackers.

2. Update the Firmware

Once the router finishes rebooting, log into the web admin console and update to the latest firmware version right away.

All routers contain bugs, some serious, that get patched in new firmware releases. Old firmware equals vulnerabilities that enable exploits.

Manually check the vendor‘s website to avoid prompts that could be fabricated by hackers.

3. Generate New Passwords

With fresh firmware installed, now comes the most important step – creating new passwords and credentials that are actually strong.

Here are password tips:

  • At least 12 characters long
  • Mix of uppercase, lowercase, numbers and symbols
  • Avoid common words, names, or dates
  • Unique for each system (Wi-Fi, admin, etc.)
  • Stored in a password manager, not on paper

Assume any previous passwords were compromised and change them all before reconnecting devices.

4. Disable Remote Access

By default, routers allow remote administration access through the public WAN IP address. This is like leaving the front door wide open for hackers.

Disable remote admin access immediately so only users physically connected to your LAN can manage the router‘s web interface.

Advanced tip: Set up a VPN for secure remote access instead of using the default insecure channels.

5. Network Segmentation

With your router cleaned up, take some time to segment your network infrastructure:

  • Use a different subnet and password for smart home devices
  • Apply the guest network setting for visitors
  • Configure a separate subnet just for your home office or gaming machines

This limits the blast radius if any single part of your network gets compromised again.

6. Additional Hardening Steps

Here are a few more advanced tips to further lock down your router:

  • Change SNMP, UPnP, and other unsecure protocols to read-only or disable entirely
  • Disable WPS – it presents a huge brute force vulnerability
  • Turn off unneeded features like USB storage, print servers
  • Configure firewall rules to block traffic to suspicious IP ranges
  • Set up router logs and intrusion detection alerts

10 Pro Tips to Prevent Your Router From Being Hacked

Practicing consistent router security hygiene is key to avoiding another painful compromise. Here are my top expert tips:

1. Update Firmware Frequently

Check for new firmware once a month and install updates promptly. This patches any discovered security holes and keeps hackers at bay.

2. Strong Passwords, Always

I can‘t stress it enough – use long, complex, unique passwords for your Wi-Fi SSID, router admin panel, etc. Password reuse or weak passwords are asking for trouble.

3. Monitor Connected Devices

Keep track of all devices accessing your network. Platforms like Glasswire let you label devices and get alerts on new connections. Unknown devices could be an intruder.

4. Use a Firewall

Configure your router‘s firewall to block traffic to and from suspicious IP ranges, countries, and restrict access between subnets. This limits malware comms and hides your network.

5. Disable Remote Administration

Don‘t allow external WAN access to your router admin console. Only permit trusted local connections inside your LAN to manage settings.

6. Be Selective With Port Forwarding

Avoid exposing more devices than necessary to the public internet. Port scanning tools make open endpoints easy to find.

7. Turn Off Unneeded Router Features

More features equal more potential vulnerabilities. Disable UPnP, guest networks, remote USB access, mobile apps, and any other extras you don‘t really utilize.

8. Use VPN Router Firmware

Advanced users can install open-source VPN firmware like OpenWRT or DD-WRT. This bakes robust VPN security into your router.

9. Isolate Smart Home Devices

Don‘t let vulnerable IoT gadgets and smart speakers access your main home network and devices. Keep them segmented on a separate network.

10. No Public Wi-Fi

Avoid connecting to public hotspots when possible – they are fertile ground for hackers to intercept data or spread malware to devices.

Closing Thoughts

I hope this guide gave you a comprehensive understanding of how to spot if your router has been infected, remove any current hackers, and prevent future compromises through consistent security habits.

Don‘t let the complexity of routers prevent you from taking action to secure your home network. While hands-on technical skills help, you can go far just by using strong passwords, updating firmware, disabling risky features, and monitoring your Wi-Fi frequently for any abnormal behavior.

Please don‘t hesitate to contact me if you have any other router security questions! Stay safe out there.


Streamr Go

StreamrGo is always about privacy, specifically protecting your privacy online by increasing security and better standard privacy practices.