How can you detect if your computer has been violated and infected with DNS Changer?
An industry wide team has developed easy “are you infected” web sites. They are a quick way to determine if you are infected with DNS Changer. Each site is designed for any normal computer user to browse to a link, follow the instructions, and see if they might be infected. Each site has instructions in their local languages on the next steps to clean up possible infections.
For example, the http://www.dns-ok.us/ will state if you are or are not infected (see below). If you think your computer is infected with DNS Changer or any other malware, please refer to the security guides from your operating system or the self -help references from our fix page (http://www.dcwg.org/fix).
The following table is a list of all easy “are you infected” sites. It includes the links to the security organizations who are maintaining the sites. Each site has instructions in their local languages on the next steps to clean up possible infections.
| URL | Language | Maintainer |
| www.dns-ok.us | English | DNS Changer Working Group (DCWG) |
| www.dns-ok.de | German | Bundeskriminalamt (BKA) & Bundesamt für Sicherheit in der Informationstechnik (BSI) |
| www.dns-ok.fi | Finnish, Swedish, English | CERT-FI is the Finnish national reporting point for computer security incidents and information security threats. CERT-FI is also responsible of maintaining the national information security situation awareness system. |
| www.dns-ok.ax | Swedish, Finnish, English | CERT-FI is the Finnish national reporting point for computer security incidents and information security threats. CERT-FI is also responsible of maintaining the national information security situation awareness system. |
| www.dns-ok.be | Dutch/French | CERT-BE is the primary Belgian contact point for dealing with Internet security threats and vulnerabilities affecting Belgian interests. |
| www.dns-ok.fr | French | Le CERT-LEXSI est la division de veille et d'enquête sur Internet, dédiée à la protection du patrimoine en ligne des organisations. |
| www.dns-ok.ca | English/French | Canadian Internet Registration Authority (CIRA) and Canadian Cyber Incident Response Centre (CCIRC) |
| www.dns-ok.lu | English | CIRCL (Computer Incident Response Center Luxembourg) is the national Computer Security Incident Response Team (CSIRT - CERT) coordination center for the Grand-Duchy of Luxembourg |
| www.dns-ok.nl | Dutch | SIDN (the Foundation for Internet Domain Registration in the Netherlands) |
| dns-ok.gov.au | English | CERT Australia, Stay Smart Online, and Australian Communications and Media Authority joint page on DNSChanger Information |
| dns-changer.eu | German, Spanish, English | ECO (Association of the German Internet Industry) |
If you are not affected by DNS Changer then do nothing.
Manually Checking if your DNS server have been Changed
The following pages would help check to manually see if you have DNS Changer DNS servers configured on your computer. Use of the “check up” pages are more effective, but some would want to check manually.
- Checking for DNS Changer on Windows XP
- Checking for DNS Changer on Windows Vista (pending)
- Checking Windows 7 for Infections
- Checking OSX for Infections
Would my Service Provider Help Me?
Many service providers are notifying their customers. They are creating help pages that will help you detect and clean up DNS Changer from your system. Here is a partial list. Please contact your SP if you do not see them on the list.
FOR MORE DETAILS:http://www.dcwg.org/
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