Your dns settings have been modified
Fix / repair internet connection after a malware infection
I recently installed Avast Internet Protection and ran a vulnerability check on my network. “Your router has been compromised, and its DNS settings have been changed to serve malicious content,” it says, and Avast advises “changing the DNS records on your router via its admin interface.” Is there anyone who can help?
12th of July, 2019 According to the firm, hackers infected and changed the DNS settings of over 180,000 Brazilian routers in the first half of 2019. Avast prevented attacks on Brazilian routers.
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This suggests that the router has been hacked and the DNS settings have been updated to allow a cyberthief to access hacked content. This is a potentially fatal scenario. All of your Internet traffic can be routed to rogue servers if hackers bypass router vulnerabilities, gain access to it, and change the DNS servers settings. A man-in-the-middle attack is what it’s called.
The DNS, or Domain Name System, is the Internet’s “phone book,” and an IP address is what’s specified in it. DNS is a protocol for naming machines, facilities, and other resources that are linked to the Internet or a private network. It transforms easy-to-remember domain names, such as www.example.com, into the specific numerical IP addresses necessary to locate the service globally.
When your router is compromised, instead of connecting to a secure site or service, you’ll be directed to a rogue and hacked one. Your privacy will certainly be breached, and your banking details will be intercepted – by the man-in-the-middle mentioned earlier. Even the typically secure SSL, the HTTPS protocol that we’ve all been told to look for to signify a secure site, won’t guarantee your safety. Instead, you’ll be redirected to malicious servers, and your encrypted link will be broken in the center. What happens is depicted in this diagram.
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When a machine wants to know the IP address of a website, it must know the address of a DNS server in order to query it. This knowledge can be obtained from the router. If you don’t decide the DNS servers to use manually, which most people don’t, the router’s DNS servers are used.
Consider what would happen if malware or a hacker obtained access to the router or device settings and replaced the DNS server addresses with their own. The device and web browser will use these, and then all internet traffic will be routed through the malware or hacker’s servers.
This means that instead of going to websites you think are secure, like your online bank, eBay, PayPal, and other locations, you are redirected to a site run by the malware or hacker without your knowledge. The login information could then be compromised.
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[Edit: I’ve moved your thread here, kbtoby, since the Malware Removal section is only available to those who need specialized support and is closed to the majority of members. [I’ve sent you a private message informing you of the new location.]
If you have the DNS setting ticked in both easy care and deep care, you must untick it in ASC settings under Junk cleaning. Also, check the “problems” section of the scanning results to see if it was listed as a “problem”; if it was, placing it in the Ignore list by right-clicking it and selecting Ignore.