Seminar by Dr Apu Kapadia, Indiana University

We introduce Soundcomber, a “sensory malware” for smartphones that
uses the microphone to steal private information from phone
conversations. Soundcomber is lightweight and stealthy. It uses
targeted profiles to locally analyze portions of speech likely to
contain information such as credit card numbers. It evades known
defenses by transferring small amounts of private data to the malware
server utilizing smartphone-specific covert channels. Additionally, we
present a general defensive architecture that prevents such sensory
malware attacks.