Sleepwalker: Passive Backdoor with Its Own Command Language

> It is a short sequence of raw bytes that only makes sense when read in a specific order.

This kind of useless sentence is what makes reading AI text so miserable

This is very cool. Definitely seems like either an early or one-time, targeted attack by someone with good know-how and significant resources, even if it itself is not top-tier. Pretty cool find!

in my script kid days, ( 30 years ago ) I did something similar for linux , using raw sockets and I think with ETH_P_ALL. embedding into a an already existing regular linux process ( recompiling the source code ) the problem was high cpu usage of the process when network usage was intensive. of course it did't survive when the OS updated the program.

What would be considered “top-notch” or “top-tier”? Something never found?

"Well, you'll never get through the frontline security but you might look for a backdoor."