Researchers build undetectable rootkit for programmable logic controllers

Researchers have devised a new malware attack against industrial programmable logic controllers (PLCs) that takes advantage of architectural shortcomings in microprocessors and bypasses current detection mechanisms.The attack changes the configuration of the input/output pins that make up the interface used by PLCs to communicate with other devices such as sensors, valves, and motors. PLCs are specialized embedded computers used to control and monitor physical processes in factories, power