>Aaron says:
>April 5, 2014 at 3:52 pm
>So how’d you sucker Bill into clicking your exploit link? Since you hadn’t yet hijacked his DNS, I presume the link didn’t (couldn’t) actually point to linkedin.>com — shouldn’t his mail client have warned him? (Mine would.)
>>Reply
>>Phikshun says:
>>April 5, 2014 at 5:35 pm
>>See this video by Raphael Mudge[1]. He does a much better job of explaining it than I would. I also had another advantage — Bill and I worked for the same company at the >>time, so I could send the phish to myself to make sure it passed all the filters. This isn't so unrealistic though. An advanced adversary will scour RFPs, public records and >>job postings to learn what protection technologies a company has and attempt to duplicate their environment for testing.
[0]http://disconnected.io/2014/03/18/how-i-hacked-your-router/c... [1]http://www.youtube.com/watch?v=OO_A8NHNBj8
Then I decided to test it, and in fact Gmail does seem to be doing more than that. I ran a two-line script as root from my mail server to send a message with an envelope-sender from my domain (which has a basic SPF txt record in its DNS) and a from: header from LinkedIn, and Gmail spit it back at my return address a moment later saying that it smelled like spam. So, good for Gmail!
But, I don't think this is common behavior, and the article doesn't actually say that the target has a Gmail account.
It pretty much is. The actual settings vary between different mail providers and this is actually more complicated than checking header against sender IP. So everything is possible, but that mail-sending part needs more explanation anyway.
That's an interesting decision for a security-minded person to make though. Do I use gmail as they'll have broad statistical analysis of attack vectors? Or do I use my own mail server which may not have the same features, but is more secure/private in other ways?
Perhaps someone could comment on the possible prison time if an approach like this was taken without the authorization that this person had in advance?
Also it would seem that it would be fairly easy if you are in physical proximity to the target to use social engineering (as opposed to a bump key - opening the front door) to gain physical access to the premises and find the wifi password right under the router. Or plant something on the network that gives you access - you get the picture. Or plant a keylogger that might not be noticed for months. Or drop a USB key (wouldn't work with an infosec guy but maybe if it was mailed to him and it looked like it came from a reliable source it would).