EM-Whisperer: A Voice Injection Attack via Powerline for Virtual Meeting Scenarios

Jiachun Li, Yan Meng, Le Zhang, Fazhong Liu, Haojin Zhu
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Abstract

The rapid development of virtual meetings brings much convenience to the user. Due to the limited battery size of smart devices, it is quite common to attend meetings while charging. However, the interface of charging also opens the door to performing audio injection attacks, which may cause series results in the meetings. In this study, based on this insight, we propose a voice injection attack for daily meetings, which is named EM-Whisperer. By modifying simple Commercial-Off-The-Shelf (COTS) devices, the attacker can inject the malicious voice stealthily and remotely with the assistance of the Frequency Modulated (FM) electromagnetic wave. For the designation of EM-Whisperer, we set up two phases: the content based analysis and the voice injection implementation. The content based analysis can be utilized for the selection of the attacking malicious words. After this phase, we can perform the proposed voice injection attacks. Finally, We implement EM-Whisperer for various virtual meeting scenarios in which users utilize various smart devices, including smartphones, laptops, and personal computers. It can achieve more than 90% in attack success rate when facing various impact factors, which proves the superiority of the proposed attacks among existing works.
EM-Whisperer:针对虚拟会议场景的电力线语音注入攻击
虚拟会议的迅速发展给用户带来了极大的便利。由于智能设备的电池容量有限,在充电时参加会议是很常见的。但是,充电接口也为音频注入攻击打开了大门,可能会在会议中造成一系列后果。在本研究中,基于这一见解,我们提出了一种针对日常会议的语音注入攻击,并将其命名为EM-Whisperer。攻击者可以通过修改简单的商用现货(COTS)设备,借助调频(FM)电磁波隐秘地远程注入恶意语音。对于EM-Whisperer的设计,我们分为两个阶段:基于内容的分析和语音注入的实现。基于内容的分析可以用于攻击恶意词的选择。在此阶段之后,我们可以执行建议的语音注入攻击。最后,我们为各种虚拟会议场景实现了EM-Whisperer,其中用户使用各种智能设备,包括智能手机,笔记本电脑和个人电脑。在各种影响因素下,攻击成功率均可达到90%以上,证明了所提攻击在现有作品中的优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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