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A backdoor in a LinkedIn job offer

roman.pt

101–110 of 331 posts

Re: A backdoor in a LinkedIn job offer

#102
post #44

Earlier quoted context omitted.

Hard disagree on the scam phone calls. It would be trivial to eradicate them almost completely if the phone operators did the bare minimum to fight against it. At any point in time, any given US phone number is handled by exactly one phone carrier. There is nothing stopping that carrier from requiring name and address to issue that phone number. They already do for 99.99% of their legitimate customers. It would be ve…

Number spoofing is not a solved problem because some carriers, which appear legitimate in all other respects, make a business out of routing your traffic over TDM trunks that don't support caller ID verification, and will claim it's extremely expensive to upgrade these to VOIP.

Fuck 'em? That's not a insurmountable problem in the slightest. Google or Apple could probably solve this problem themselves by simply not ringing the phone for any call that doesn't meet ID verification.

Re: A backdoor in a LinkedIn job offer

#103
post #56

Earlier quoted context omitted.

LinkedIn offers no way for $company to disavow users who claim to work for $company - they will appear on the official company page as long as it's in their profile. We've had fake recruiters that claim to work for us running basically the same scam. These are great fake profiles: LinkedIn Premium, tons of relevant posts, etc... but they don't work for us, and we get angry messages from people saying our recruiter tr…

LinkedIn didn't even disavow people pretending to work for LinkedIn until someone had too much fun with it - https://chrisduffycomedy.com/blog/2016/11/2/6-months-as-the-...

That’s funny, thanks for that.

Re: A backdoor in a LinkedIn job offer

#104

Earlier quoted context omitted.

Unfortunately most evil cybercriminals know the "one weird trick" of "do your crimes in countries that don't care about the crimes"

I see several comments like this implying nothing can be done. But that is far from the truth. First, an agency that actually answered the phone could coordinate directly with LinkedIn and other tech companies to quickly take down these fake accounts and minimize harm to others. We all know how incredibly hard it is to contact a tech company. Second, an agency that answers the phone could help less technical people f…

Won't that require laws that allow the said agency to compel LinkedIn or whatever tech company to actually pay attention and take action? Like laws compelling tech companies to unlock the bootloader once they stop supporting a device.

I wonder why such common sense laws don't exist and who is preventing them from being introduced and passed despite wide public support in general?

Re: A backdoor in a LinkedIn job offer

#105
post #8

So, this is a crime right? Why isn't there a well known '911' for cybercrime to report things like this to and get help? Society needs to catch up with the actual dangers out there and build support networks for this ASAP. This is organized crime and needs organized defense to deal with it.

There is but the FBI is horrible at responding to cybercrime. They have IC3 but its basically useless. They arent going to help or even contact you if you report a crime to them.

Re: A backdoor in a LinkedIn job offer

#106
post #56

Earlier quoted context omitted.

LinkedIn offers no way for $company to disavow users who claim to work for $company - they will appear on the official company page as long as it's in their profile. We've had fake recruiters that claim to work for us running basically the same scam. These are great fake profiles: LinkedIn Premium, tons of relevant posts, etc... but they don't work for us, and we get angry messages from people saying our recruiter tr…

My last 2 companies, LinkedIn asked me to add an email address associated with the said company and actually confirm via said email in order to add them to my profile. So, if I worked for FooCompany, I had to have a @FooCompany.com email which is setup by someone at the company itself. Does this not cover what you're talking about?

I have the same. The difference is, if you do email verification, you will "verified" status. If not, you can still add the company to your linkedin, just unverified, which is not a label.

Re: A backdoor in a LinkedIn job offer

#107
post #57
post #16

> a recruiter at a small crypto startup [...] she described a broken proof-of-concept they needed a lead engineer for, and then sent me a public GitHub repo to review. Specifically, she asked me to “check out the deprecated Node modules issue.” > ...buried between walls of commented-out tests, the payload runs anything the server sends back to your machine. > npm runs prepare automatically after npm install, so just…

Things like this where a tried and tested method on Upwork, particularly in the 2021-2022 crypto/nft highs. At some point they branched out from crypto projects and cast a wide net across different categories. Last I recall was a download of a windows scr (screensaver masquerading) file. Linkedin is a new low, and I'm sure the platform doesn't really care (look, more jobs), just as ad network companies (Google, Meta)…

I reported a fake costco website ad (cc harvester) to Google, their response was something along "we cannot verify the ad", go figure

Re: A backdoor in a LinkedIn job offer

#109
post #21

I've been getting some job offers on LinkedIn, all of them are shady af. Apply using a platform. Apply recording a video of yourself. Apply by resolving a calibration code test (behind a code platform)...

My brother had been unemployed for a long time due to illness, and finally got a "job offer" on LinkedIn that seemed legit to him. They asked for him to write a check to make a deposit for his company laptop (which seems pretty insane on the face of it), but he was desperate and really happy to finally have a job offer.

People who've been unemployed for a long time are often desperate enough to overlook serious red flags that would never catch someone with substantial savings or who's employed and looking to job hop.

Re: A backdoor in a LinkedIn job offer

#110
post #32
post #16

> a recruiter at a small crypto startup [...] she described a broken proof-of-concept they needed a lead engineer for, and then sent me a public GitHub repo to review. Specifically, she asked me to “check out the deprecated Node modules issue.” > ...buried between walls of commented-out tests, the payload runs anything the server sends back to your machine. > npm runs prepare automatically after npm install, so just…

Friends don't let friends use NPM. At this point it is so wildly crazy watching people get owned, I don't understand how anyone uses it when they could use e.g. PNMPM and block one if the most obvious and frequently exploited holes. These tools with arbitrary code execution when trying to download some code have got to stop. Edit: typos

>These tools with arbitrary code execution when trying to download some code have got to stop

But you still end up with the code on your machine and risk it being ran.

Bigger issue is giant, inscrutible dependency trees.

In this example, if they tried to run the test suite or application, they'd have been in the same boat.

Afaik all or most languages have some way to run arbitrary code at install time but it seems node is the main one getting targeted. I think the bigger issue here is just people running untrusted things.

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