This Hacker Can HEAR YOUR MEMORY?! by Low Level Learning (YouTube)
This Hacker Can HEAR YOUR MEMORY?! by Low Level Learning (YouTube)
Alternative Invidious link without using YouTube directly: https://yt.artemislena.eu/watch?v=ihtAijebU-M
Insane method to read your PCs memory, based on certain electromagnetic emissions your system makes when you write or read data to the RAM.
Video Description:
The RAMBO Attack on RAM is truly amazing. Some of the best research I've seen.
covertchannels.com arxiv.org/pdf/2409.02292 wired.com/story/air-gap-researcher-mordechai-guri
youtube.com/watch?v=CjpEZ2LAazM&t=0s youtube.com/watch?v=-D1gf3omRnw&t=0s
I read long ago you had to get malware on the air gapped machine first to begin with, and then it's only accessible within a few meters. Also it can't be accessed through walls. That was years ago though, maybe it's changed now.
It's not reading the contents of RAM via EM emanations, it's using the EM emanations caused by certain memory access patterns as a side channel to exfiltrate data. Of course, that data could be anything, including whatever is in RAM, but the point is that you need to be running the code that generates the necessary memory access patterns to transmit the bits of data. This is not like TEMPEST where you can reconstruct a video display just using the emanations.