Avira DNS Repair can scan for, and repair your computer if you're infected with the DNS Changer malware.

The DNS Changer malware has been around for some time now, but it still can spread. Initially, it was a drive-by download infecting people by masquerading as a codec required to watch videos on rogue pornography sites. Those infected will have their DNS configuration modified so that they point to rogue servers and serve advertisements.

Nowadays, the odds of getting this are almost zero due to law enforcement cracking down, so this is here primarily as an archive for techs who might, for example, need to remove it from an older computer.

Avira DNS Repair is portable and simple to use. Typically, something like this should be run from safe mode. Avira DNS Repair will scan and report if you're clean, and restore your DNS configuration if infected.