On my blog: One weird trick to get the whole planet to send abuse complaints to your best friend(s)

https://delroth.net/posts/spoofed-mass-scan-abuse/

Summary of my adventures from last evening, as read in this Mastodon thread: https://mastodon.delroth.net/@delroth/113387965977159983

#infosec #networking #tor

delroth's homepage - One weird trick to get the whole planet to send abuse complaints to your best friend(s)

delroth's homepage

Update: I got an email from Hetzner's legal team today saying they came across my blog post (nice!). Paraphrasing:

- They're monitoring and understand that there is no actual abuse being done from these Tor relays getting spoofed.
- They emphasized that they do not routinely take action on this kind of abuse complaints, and that's why they forward them without requiring reply/action from the customer.

Love hearing this, and I'm actually impressed by Hetzner's response! Major props.

New update: the CTO from "watchdogcyberdefense.com" has been in my emails, and I can only summarize our exchanges by my current feeling of "wow there should be an exam to be allowed to send more than N abuse complaints/day".

To quote from them: they're seeing "1.3 billion attacks logged in the past 24h", they claim IPs are infected because VirusTotal says so, and they're trying to make a deal with me where if I iptables OUTPUT DROP their network they'll stop sending abuse complaints to Hetzner.

@delroth Wouldn't that do absolutely nothing and be something they couldn't validate?
@gudenau yes and yes, want to be CTO as well?
@delroth Eh, I'd probably do a bad job with actual duties they are supposed to do.
@gudenau @delroth But here's the thing: Delroth could do it, and they'd still be getting flooded, so they'd just assume he did it wrong. They'll trust the malicious source of the traffic (to tell the truth about its IP) more than they'd trust Delroth (who's obviously an incompetent sys admin. /s)