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DNSChanger Malware Virus Information

Last Updated: Wed, 19 Feb 2014 > Related Articles

37 rated this

Summary

Learn more about the DNSChanger virus, a form of malware that may be negatively affecting your domain name system settings.

Solution

If you have received a message from Cox Customer Safety regarding the DNSChanger virus, review the cleaning instructions below and take action to remove the malware from your system(s). Also, verify that you have the correct DNS settings on your computer, router, or gateway. Cleaning alone will not resolve the DNS setting issue.
Cox Communications is dedicated to protecting the Internet experience of our customers. We notify customers when their computer systems may be infected with malicious software, known as malware.
 
DNSChanger Malware Information Cox Communications is dedicated to protecting the Internet experience of our customers. We notify customers when their computer systems may be infected with malware.
 
DNSChanger, a form of malware, redirects your Internet traffic to alternative websites, allowing the malicious operator to control the customer’s Internet experience. A common method is to redirect advertisement traffic to sites controlled by the malicious operator. This malware can also allow infected computers to be controlled remotely. Details about this malware, how it can attack, and how your system may have been infected, can be found on the following FBI and Department of Justice website.
 
DNSChanger malware causes a computer to use rogue, or bad, Domain Name System (DNS) settings in one of two ways. First, if the malware successfully infects the customer’s computer(s), it changes the DNS settings to replace the good ISP settings with rogue settings that are then operated by the malicious operator. Second, if the malware infects a router or gateway device on the customer’s network, all computers located behind the router or gateway device within your network could be controlled by the malicious operator. Therefore, these changes may impact all computers on your network, even if those computers are not themselves infected with the malware.

Malware Tools

 

There are many forms and versions of this malicious software and no utility can effectively detect and remove all versions from all operating systems. Cox recommends you consider using the following free tools for removing the malicious software:
 
Windows Operating Systems:
 

Mac OS X: DNSChanger Trojan Horse Removal
 
As a precaution to protect your privacy and data -- if these tools are unable to remove the malware -- the Department of Justice with the assistance of the FBI and Cox, recommend that you update your master boot record and reformat your hard drive, or take it to a local repair shop to have this done.
 
Cox Tech Solutions can assist. Visit Cox Tech Solutions online at https://secure.coxtechsolutions.com/ or call 877.TEC.SOLV (832.7658) to get started.

DNS Settings

 

Check your DNS settings. It is very important that you find and remove any incorrect settings on your computer, router, or gateway.
 
If your DNS settings have IP addresses within the ranges listed below, you must re-configure the device and secure the router / gateway with a strong password. See Cox Password Requirements for tips.

  • 85.255.112.0 through 85.255.127.255
  • 67.210.0.0 through 67.210.15.255
  • 93.188.160.0 through 93.188.167.255
  • 77.67.83.0 through 77.67.83.255
  • 213.109.64.0 through 213.109.79.255
  • 64.28.176.0 through 64.28.191.255

Follow one of the below guides to access the Internet settings on your computer:

To access your router or gateway settings, see the owner's manual and locate the DNS settings.
 
Further assistance is available at Cox Tech Solutions at affordable rates.


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