SPEAKE(a)R: Turn Speakers to Microphones for Fun and Profit
نویسندگان
چکیده
It's possible to manipulate the headphones, earphones, and simple earbuds connected to a computer, silently turning them into a pair of eavesdropping microphones. This paper focuses on the cyber security threat this behavior poses. We introduce 'SPEAKE(a)R,' a new type of espionage malware that can covertly turn the headphones, earphones, or simple earbuds connected to a PC into microphones when a standard microphone is not present, muted, taped,1 or turned off. We provide technical background at the hardware and OS levels, and explain why most of the motherboards and audio chipsets of today’s PCs are susceptible to this type of attack. We implemented a malware prototype and tested the signal quality. We also performed a series of speech and recording quality measurements and discuss defensive countermeasures. Our results show that by using SPEAKE(a)R, attackers can record human speech of intelligible quality and eavesdrop from nine meters away.
منابع مشابه
شکلدهی وفقی و هوشمند پرتو در آرایههای میکروفونی Ad-hoc با استفاده از خوشهبندی و رتبهبندی میکروفونها
Considering the existence of a many speech degradation factors, speech enhancement has become an important topic in the field of speech processing. Beamforming is one of the well-known methods for improving the speech quality that is conventionally applied using regular (classical) microphone arrays. Due to the restrictions in the regular arrangement of microphones, in recent years there has be...
متن کاملTurn taking-based conversation detection by using DOA estimation
We propose a new method that detects conversation groups when multi-conversation groups exist simultaneously. The proposed method uses hands-free microphone arrays without wearable microphones. It has two main features: (a) We integrate a conventional turn taking-based conversation detection method with Direction of Arrival (DOA) estimation-based Voice Activity Detection (VAD). (b) The proposed...
متن کاملRecognition of Plosives in Running Speech
In this paper the authors propose a completely automatic speake r independent system to recognize a ll six stop consonants in continuous speech. Thi s system makes use of three differe nt distinctive features including formant transitions, silent interval and voice onset time. One hundred and twenty sentences from six English speakers were selected and tested by the system. The results confirm ...
متن کاملDiscrete-Time 7&/P& Control of an Acoustic Duct: Delta-Domain Design and Experimental Results
A dimenstioned diagram of the experimental configuration of the acoustic duct is shown in Figure 1. The duct is constructed of 4 inch diameter PVC plastic piping. Electret condenser microphones are used as sensors. These omnidirectional microphones measure acoustic pressure and have an approximately flat frequency response over a frequency range of 20 Hz-20 kHz. Acoustic actuation for both dist...
متن کاملEnhancement of speech in multispeaker environment
In this paper a method based on the excitation source information is proposed for enhancement of speech, degraded by speech from other speakers. Speech from multiple speakers is simultaneously collected over two spatially distributed microphones. Time-delay of each speaker with respect to the two microphones is estimated using the excitation source information. A weight function is derived for ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- CoRR
دوره abs/1611.07350 شماره
صفحات -
تاریخ انتشار 2017