Post #245

控制内存条发出Wi-Fi电波泄露信息，连这种事情也能做到啊……这个旁路攻击/侧信道攻击(Side-channel Attack)真厉害，就算电脑被物理隔离了也能泄密，而且不需要特殊设备，发送端只是普通内存条，接收端只是普通手机等可连Wi-Fi的设备。 作者Mordecai Guri, PhD, is the head of R&D at Ben-Gurion University of the Negev's Cyber-Security Research Center. He earned his B.Sc. and M.Sc, from the Computer Science Department at Hebrew University and received his PhD from BGU 以色列能在计算机领域有这么多成就，感觉很神奇。人口是北京40%，面积是北京140%，作为国家来讲算是人满为患了。内忧外患，军费开支巨大。耕地紧缺。手里全是烂牌，能发展到现在的程度不可思议。 Abstract: In this paper, we show that attackers can exfiltrate data from air-gapped computers via Wi-Fi signals. Malware in a compromised air-gapped computer can generate signals in the Wi-Fi frequency bands. The signals are generated through the memory buses - no special hardware is required. Sensitive data can be modulated and secretly exfiltrated on top of the signals. We show that nearby Wi-Fi capable devices (e.g., smartphones, laptops, IoT devices) can intercept these signals, decode them, and send them to the attacker over the Internet. To extract the signals, we utilize the physical layer information exposed by the Wi-Fi chips. https://arxiv.org/abs/2012.06884 （其实我看不懂论文，只能看懂摘要。点进论文只是看看实验的照片） #Comment#ComputerScience#ElectronicEngineering#News#Technology