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Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

knownagents.com

191–200 of 214 posts

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#191

How can I attract more of these bots to my server? I want to test my Apache bad bot blocker. It uses basic header fingerprinting and h2 support to filter them. I get less than 5000 hits on an average day, and want a lot more.

I went from 2k hits a day to 15k in the past week.

Point a domain at your IP, use letsencrypt, post your domain on Reddit, github, x, etc. The bots will find you.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#192
post #6

Every server with port 80/443 open has thousands of hits a day from random boxes looking for wordpress login pages. The only new thing is that they're pretending to be a different type of annoying bot. There's a new layer of sophistication and subterfuge, but it's the same junk traffic we've always dealt with.

Think about how many webmaster and business owners' egos are stroked by all the traffic they are getting, when in actuality they are often just serving thousands of bots.

You pretty quickly learn to qualify incoming traffic since it directly impacts how you track conversions. But definitely to begin with, you see thousands of "people" view a page and no one bites, it can be disheartening until you realise it was mostly bots.

I have basically 180d entirely on view metrics, they are more or less noise to a small business owner. Did someone buy or not, that's all you actually need to care about.

Even big retail stores are pushing back on crap like KEPLAR/foot traffic tracking, since it doesn't actually change what you do, or impact sales.

Measure sales, measure customer delight, make those the targets.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#193
post #92
post #43

Earlier quoted context omitted.

I was insulted recently reading about the apparently thousands of hits per second the rest of you guys are getting. Even the bots are shunning me!

Humans never visit but I have some websites with ancient cms's. When I got bored playing with them I download the html, change the extensions to php and replace the site with a static copy. People then tirelessly try to hack it since they have laundry lists of known vulnerabilities. (Now that I think about it I regret not making the admin area public for added nostalgia.)

Not that I follow my own advice, but a popped server can still be a liability for you. If you don't need it online I would take it down. Don't want to suddenly realise you've been an email spam node for several months.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#194
post #6

Every server with port 80/443 open has thousands of hits a day from random boxes looking for wordpress login pages. The only new thing is that they're pretending to be a different type of annoying bot. There's a new layer of sophistication and subterfuge, but it's the same junk traffic we've always dealt with.

Exactly this. It's no different from a bot pretending to be Googlebot. I've tried reporting abusive IPs to various foreign hosts, but nothing every comes to it. I've settled for just blacklisting excessively abusive IP ranges.

Years ago, I built a sort of camo-proxy like, in Elixir. It was doing full passthrough of the User-Agent because the project that I originally built it for needed it for the upstreams (i don't remember why). Anyway, I ended up pulling it into pleroma -- a couple of months later, we had been informed by some instance owners that google itself were sending them DMCA notices, because it was proxying googlebot's request, with its user-agent!

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#195
post #6

Every server with port 80/443 open has thousands of hits a day from random boxes looking for wordpress login pages. The only new thing is that they're pretending to be a different type of annoying bot. There's a new layer of sophistication and subterfuge, but it's the same junk traffic we've always dealt with.

Think about how many webmaster and business owners' egos are stroked by all the traffic they are getting, when in actuality they are often just serving thousands of bots.

What are you talking about? Are you saying 80% of my loyal visitors aren’t from Singapore?

/s

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#196

I recently blogged about some Cloudflare Workers I developed to combat this type of traffic: https://code.backwater.systems/blog/#2026-06-29T23:40:00.000...

Using a normal page per blog entry would go a long way to making your site more indexable, readable, shareable and seo-able. (Good article btw).

That is a “normal page” for a single blog entry. What are you talking about?

Oh, the link is entirely contained in the fragment. So it’s some SPA blog thing. I get it.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#197

Earlier quoted context omitted.

I did just this. Using a $2k a year database from a smaller provider that isn't maxmind, claude and I built a pretty slick ASN based categorization system. I can categorize an ASN as a residential IP, a service provider, a legit crawler/scraper, etc. For anything that is suspicious, I dynamically use turnstile to gate access to our service. Turns out there's no ISP for any VPN, they just contract with a shitload of m…

Contracting with their colocation facilities is exactly how that's supposed to work. If you don't actually operate a wide area network then you aren't supposed to be registered in these databases and have IP blocks. The exception is people who do anycast, but VPN companies don't. You know all these guys just switch to residential proxies if they detect a site is blocking data centers, right? Because that's a very com…

Not sure what you mean by your first comment - there is no technical reason that I know of that prevents a VPN provider from having their own ASN and address space.

As for the latter comment....not sure what your implication is. Yes, bot/spam mitigation is whackamole, but there are consequences for not playing the game of whackamole. Luckily residential proxies are few and far between so far, but they will grow in popularity. When they do, and I can't get by with the occasional individual residential IP ban, we'll come up with other methods to handle.

Luckily the signal is strong with vulnerability scanning, which makes it pretty easy to automate. The only reason to put up whole ASN mitigation (captcha/turnstile, outright bans) is just efficiency. Nothing stopping individual IP banning. The scrapers are the tricky ones, since they more easily hide in legit traffic. However legit traffic has patterns that scrapers do not emulate (at least for a service like ours with millions of pieces of user generated content that's easily walkable), so you can still pull out the signal. It's just a little trickier.

Definitely a continual arms race though.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#198

Earlier quoted context omitted.

It's all TLS certs, because they show up in the Transparency Log[1] You can watch a live stream of it here: https://bencevans.io/security/certificate-stream [1] https://en.wikipedia.org/wiki/Certificate_Transparency

I use subdomains and a wildcard cert to partly obfuscate this.

I do the same, but I switched from cert-per-subdomain a couple of years ago.

They're either using Passive DNS logs or a historical dataset.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#199

Earlier quoted context omitted.

Think about how many webmaster and business owners' egos are stroked by all the traffic they are getting, when in actuality they are often just serving thousands of bots.

imagine having a KPI tied to cash bonuses based on that...

2004 was a weird time.

Re: Someone is running mass vulnerability scans, spoofing AI bots like ClaudeBot

#200

Earlier quoted context omitted.

Getting it directly from IANA is always the best approach. Here is a "simplified" version in various formats. https://github.com/HotCakeX/Official-IANA-IP-blocks

Gross - you're going to block countries just because the US government doesn't like those countries?

Do you think you get excluded from mass scans for disagreeing with your government?
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