What the DNSChanger malware is — and why you should care (FAQ)

This graphic shows how the DNSChanger malware worked.This graphic shows how the DNSChanger malware worked.
(Credit: FBI)

The DNSChanger malware has been around for years, but its deleterious effects are coming to a head this Monday. Here’s what you have to know about it, and how to fix it.

What is DNSChanger?
DNSChanger is a Trojan horse malware with many variants. It changes an infected computer’s DNS settings to point to rogue, bad guy-controlled servers. These then show you ads that look real, but aren’t. Basically, it redirects your legitimate Web surfing to malicious Web sites that then attempt to steal personal information and generate illegitimate ad revenue.

How much money did DNSChanger make?
From the time it was discovered around 2007 until six Estonian scammers were caught in November 2011, DNSChanger scored them upwards of $14 million, reportedly. Continue reading