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Why Is This Website Port Scanning Me?

nullsweep.com

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Re: Why Is This Website Port Scanning Me?

#11
post #2

This raises the question: Is port scanning without consent a violation of the CFAA? Either it is legal, and researchers should face no repercussions for doing so, or it isn't and eBay is non-compliant with CFAA. I recall hearing about someone either being arrested or convicted due to port scanning a courthouse, but it was many years ago and I can't find the case with a cursory Google search. I have to wonder what val…

My guess is bot detection + user fingerprinting.

Re: Why Is This Website Port Scanning Me?

#13
post #2

This raises the question: Is port scanning without consent a violation of the CFAA? Either it is legal, and researchers should face no repercussions for doing so, or it isn't and eBay is non-compliant with CFAA. I recall hearing about someone either being arrested or convicted due to port scanning a courthouse, but it was many years ago and I can't find the case with a cursory Google search. I have to wonder what val…

Was it this? https://news.ycombinator.com/item?id=21023023

No, I think it was probably close to a decade ago, but I likely am misremembering some of the details. Could've been a police department, but I'm not sure.

That one you linked is a messed up case. There is a phenomenal podcast that interviews those guys and walks through their engagement. https://darknetdiaries.com/episode/59/

Re: Why Is This Website Port Scanning Me?

#14
post #9
post #4

Earlier quoted context omitted.

Not illegal. Sites like shodan.io would have an issue if it was.

That's a fallacious argument. The fact that someone is doing something doesn't mean it's automatically legal.

IANAL, but more likely it depends on intent and context. So shodan.io is okay because it’s not explicitly malicious, and they have clear paths to contact them if you suspect abuse. Whereas, if you’re suspected of hacking a website, the fact that you port scanned it a week prior to password spraying it might serve as evidence against you. That is, it seems unlikely anyone would be prosecuted for port scanning alone, but it could be an act that demonstrates intent of a later action.

One time, I port scanned my public IP (of my ISP) from an EC2 box, and I got an email from EC2 saying they received an abuse complaint from the ISP for port scanning activity.

Re: Why Is This Website Port Scanning Me?

#15
post #2

This raises the question: Is port scanning without consent a violation of the CFAA? Either it is legal, and researchers should face no repercussions for doing so, or it isn't and eBay is non-compliant with CFAA. I recall hearing about someone either being arrested or convicted due to port scanning a courthouse, but it was many years ago and I can't find the case with a cursory Google search. I have to wonder what val…

Someone's never caught a case. You may not think this is true but the way the legal system works is everything is illegal. Then when they need to get you you are already guilty. Everyone else they just ignore. Crazy, right?

LMAO a downvote in 3 seconds. Good old hacker news. Well, downvotes don't make you right. I'm trying to open your eyes and you downvote me. I guess that is to be expected.

Re: Why Is This Website Port Scanning Me?

#16
post #4
post #2

This raises the question: Is port scanning without consent a violation of the CFAA? Either it is legal, and researchers should face no repercussions for doing so, or it isn't and eBay is non-compliant with CFAA. I recall hearing about someone either being arrested or convicted due to port scanning a courthouse, but it was many years ago and I can't find the case with a cursory Google search. I have to wonder what val…

Not illegal. Sites like shodan.io would have an issue if it was.

IANAL but this type of websocket port scan seems inherently different from what Shodan does.

Shodan is outside your network's firewall, therefore only able to access services you've exposed to the wider web.

If I understand the article, the websocket scan eBay is doing is trying to connect to local listeners on your laptop, behind your network's firewall and possibly even behind your laptop's firewall.

Re: Why Is This Website Port Scanning Me?

#17
port scanning is fine and should not be illegal. It's just "looking" at a house to see if there is a door and what type of key (protocol) it uses.

Trying to open a connection on the other hand it's like trying to open the door. That should be considered as a violation.

Re: Why Is This Website Port Scanning Me?

#18
post #9

Earlier quoted context omitted.

That's a fallacious argument. The fact that someone is doing something doesn't mean it's automatically legal.

IANAL, but more likely it depends on intent and context. So shodan.io is okay because it’s not explicitly malicious, and they have clear paths to contact them if you suspect abuse. Whereas, if you’re suspected of hacking a website, the fact that you port scanned it a week prior to password spraying it might serve as evidence against you. That is, it seems unlikely anyone would be prosecuted for port scanning alone, b…

What's Shodan.io's legitimate use? Sounds like the "torrents can be used for legitimate content" type argument where in reality you a rounding error the use is not lawful??

Re: Why Is This Website Port Scanning Me?

#19
post #2

This raises the question: Is port scanning without consent a violation of the CFAA? Either it is legal, and researchers should face no repercussions for doing so, or it isn't and eBay is non-compliant with CFAA. I recall hearing about someone either being arrested or convicted due to port scanning a courthouse, but it was many years ago and I can't find the case with a cursory Google search. I have to wonder what val…

When did networking support we often had old code + lower quality equipment that could / would crash if you used off the shelf security software that would go out and scan and then try all sorts of things and then generate a report.

I'd say 90% of the time the powers that be at the company had no idea someone was running that software, or that it was still running at their company, and then someone moved a firewall and the system was exposed to more than intended. Then they'd turn it of ... and find another similar tool running somewhere else.

It could be a simple as a test or security system run amok.

Re: Why Is This Website Port Scanning Me?

#20

> Furthermore, when I installed and ran a VNC server, I didn't detect any difference in site behavior - so why is it looking for it? I think behind the scenes they keep log of some sort of fraud risk, e.g. geoip different from billing country, suddenly a new operating system, vnc/teamviewer running would probably flag your account (even for benign purposes, e.g. you can get your money back or purchase cancelled if th…

That makes a lot of sense. I assumed it was somehow for anti-fraud, though I still don't like it.
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