Security experts are warning Internet users to be aware of a disturbing evolution in malicious software that can turn a single infected computer into a vehicle for stealing data from nearby systems, regardless of what operating system or security software those computers may be running. The evolution comes compliments of the DNSChanger family of malware, which usually comes disguised as a codec or browser plug-in that a user is told he or she needs to install in order to view Web-based videos. As its name suggests, the malware alters the domain name system (DNS) server settings on infected systems, effectively routing the victim’s Web searches and other online activities through servers that the attackers control. DNSChanger can install on a Mac or Windows computer. The added feature in the latest version of DNSChanger is that it installs its own DHCP server on the victim’s machine. DHCP stands for “dynamic host