DNS Pharming Attacks Using Rogue DHCP

"The idea is simple and evil at the same time: a Trojan installed on an infected machine runs a rogue DHCP server on the local network and serves bogus DHCP packets to other machines when they request a new IP configuration. If the Trojan is fast enough in sending out these DHCP packets, with some luck it can modify the network configuration of other computers." Read more...