New rogue DHCP server malware

A bold new type of malware has been identified.  Its attack vector is based on hijacking the DNS settings for devices on a local area network. Any device regardless of operating system that depends on an internal or external name server can be affected.

The trojan configures and runs a rogue DHCP daemon on the infected host. Other devices on the same LAN are misled into using name servers settings provided by the trojan DHCP daemon for DNS lookups instead of using the origional configured name servers.

Devices on the network are then sent to fraudulent websites that can be more difficult to identify as imposters since the DNS lookups appear correct.

This is a more advanced attack of a well known vector of attacking a systems hosts file, but by being system agnostic and using the familiar DNS protocol, it is much more effective.

More details can be found at SANS