Router malware is a type of malicious software that can infect and take control of your router. If your router is infected, the attacker can use it to redirect to a malicious website, steal your data, or even launch a DDOS attack.
Virus is a specific type of malware whereas Malware is a general term for any software which can include viruses, worms, and Trojans.
Router malware is becoming increasingly common in recent times as they are often overlooked as a potential target for attack. Remember the connected devices to your router can be controlled once your router is compromised.
Default password use, use of outdated firmware, phishing attacks, use of USB drives, and exploitation of vulnerabilities in the Router are some of the practices by attackers that lead to Malware getting into your Router in the first place. There are always to resolve any issue if needed just we need the right approach on How to Protect Your Router from Malware and Other Cyberattacks.
How do I know if I have malware?
Slow computer performance: Malware can slow down your computer by using up its resources, such as CPU and memory.
Frequent crashes and freezes: Malware can cause your computer to crash or freeze by corrupting system files or causing software conflicts.
Pop-up ads and messages: Some malware displays pop-up ads or messages, often with the intent of tricking you into clicking on them.
Slow or unreliable internet connection: Malware can use up your internet bandwidth or interfere with your internet connection, causing it to slow down or become unreliable.
Missing or corrupted files: Malware can delete or corrupt your files, either intentionally or unintentionally.
Disabled or malfunctioning antivirus program: Some malware can disable your antivirus program or prevent it from working properly so that it can go undetected.
A different DNS server address: DNS servers are responsible for translating domain names into IP addresses, which are the numerical addresses that computers use to communicate with each other. If a hacker changes your DNS server address, they can redirect your traffic to malicious websites, even if you type in the correct domain name.
Recent news has highlighted a specific issue. Let’s learn more about it.
‘BlackTech’ targeting routers
- A China-linked threat actor called “BlackTech” is targeting the firmware of network routers, including those sold by Cisco.
- BlackTech has been modifying router firmware without detection and exploiting routers’ domain-trust relationships to pivot from international subsidiaries to headquarters in Japan and the U.S.
- BlackTech has compromised several router brands and product versions, but the advisory focused on attacks targeting Cisco routers specifically.
- BlackTech modifies the router’s firmware by adding backdoors while also concealing configuration changes, hiding commands, and disabling logging. In some cases, BlackTech replaces firmware for certain Cisco Internetworking Operating System (Cisco IOS)–based routers with custom malicious firmware.
- BlackTech actors typically gain initial access and elevated privileges through stolen administrative credentials. The firmware is then used to establish persistent backdoor access and obfuscate future malicious activity.
Read Original Article: US, Japan warn China-linked ‘BlackTech’ targeting routers
CISA and Cisco recommend the following to protect against BlackTech attacks:
- CISA: Monitor your network devices for strange traffic, unauthorized changes to your router’s startup software, and unexpected firmware downloads or reboots.
- Cisco: Follow the best practices in their 2020 advisory to defend against attacks on older devices.
Cisco was singled out in CISA’s advisory because it is a major manufacturer of routers and other network equipment. Cisco’s devices are used by businesses and organizations all over the world, so it is important for them to be aware of the BlackTech threat.
Cisco has confirmed that none of its vulnerabilities were exploited in the BlackTech attacks, but the company still recommends that customers update, patch, and securely configure their devices to protect against future attacks.
How to protect your router from malware
If you think your router’s been infected with malware, here’s what you can do to remove it:
It’s all in Chronological order
Restart your router: This can sometimes get rid of temporary malware infections.
Reset your router to factory defaults: This will erase all of the settings on your router, including any malware that may be installed.
Change your router’s password: This will stop the attacker from being able to log into your router again.
Use a strong password for your router: Don’t use the default password or a password that’s easy to guess.
Change DNS server address: DNS servers are responsible for translating domain names into IP addresses, which are the numerical addresses that computers use to communicate with each other. If a hacker changes your DNS server address, they can redirect your traffic to malicious websites, even if you type in the correct domain name.
Keep your router’s firmware up to date: Firmware updates often include security patches that can help protect your router from malware.
Turn on your router’s firewall: A firewall can help to protect your router from unauthorized access.
Read also: HOW TO ENABLE FIREWALL IN TP LINK ROUTER?- IS IT ANY GOOD IN 2023?
Keep your antivirus software up to date: Antivirus software can help to detect and remove router malware.
Consider using a VPN: A VPN can encrypt your traffic and hide your IP address, making it more difficult for attackers to target your router.
Your router is a critical part of your home network or any enterprise network for that matter. It is often overlooked as it leads to these types of malware attacks. Protect your network and its connected devices to protect your data, your services, and your privacy.
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