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by ButlerianJihad 37 days ago
A few years back, I discovered my router had joined a botnet. The only reason I made this discovery was because of third-party external DNS logs.

Upon investigation, I also discovered that all 3 routers I owned were pwned. So I threw them out the window and tried making do with my ISP's equipment.

My ISP can't provide adequate service on theirs and it's worse than COTS routers, so I purchased a bleeding edge WiFi 7 router. Now there are the two literal black boxes on my network. They do their job and I don't know what else. I can't know.

It could be C2 or it could be a backdoor shell or some kind of server that collects illicit material, and torrents it out? Borrow your HDD for some CSAM sir? It could be a residential proxy that just steals part of my connection for some other paying customer. Are they infringing TOS? How would I know? Check their ID and verify their age??

I, and 99% of consumers with an ISP, have no way of telling when our routers or IoTs are pwned. A silent botnet or two is extremely likely. They're nigh undetectable, and can't be mitigated or defended, except by fastidious updates and upgrades.

My new router was literally triggering printouts on my old printer, because it was so damn "proactive" about "network security scans" and the old trusty printer couldn't tell the difference between a red-team intrusion, and a legit request to print something out!

Likewise even someone with a singular Windows or Mac directly plugged into their ISP could be in a botnet, and it's hard to know. Everyone who's got a smart TV or something with a Linux kernel and an Ethernet, could be doing more than was asked of it. It's the worst kind of malware that alerts the user to its presence. It's a shoddy install if your AV can detect and clean it. If it's stealthy enough then there's no telling.

It's because the vendors own these devices. They deploy the software. They control the builds. The vendors are responsible for what these machines are doing in our hands. Who really, really knows all that goes on when we click that green button? Was it a Joomla or a scam or a legit bank request? Who dafuq knows or cares anymore? Is it an apt analogy that they're selling us herds of animals and farms, and we know nothing of ranching? "Oh feed yourself; should be easy you got everything there" until the coyotes and locusts come? Or like having children who seem to be in school and doing alright, but where do they go at night? Sell drugs? Who knows, I'm not their father, they just live here?

Are they responsible for knowing and mitigating them? Our ISPs don't seem to care or notify us or disconnect us when it happens. Why should we? Why take responsibility?