Re:How a hacker's typo helped stop a billion dollar bank heist
by r0m4n0 on Thursday March 10, 2016 @11:40PM
(#11264678)
I worked at a very large company that had a email virus move quickly through the ranks...
The subject of the email was "Please see attached documens" in which a PDF was attached that upon opening would hijack your email account and send the same. Over the first day, I had about 100 emails from coworkers in my inbox. After our "IT Security" team sent out an email claiming they stopped the threat, the following day more emails came from coworkers that was a slight variant but had more typos.
I still wonder what sort of breach occurred and whether our internal teams performed a true investigation... obviously a foreign intrusion and they managed to at least gain control of quite a few internal machines.
I still get a laugh out of using the same subject in an occasional email to coworkers...
Re:How a hacker's typo helped stop a billion dollar bank heist
by CiPHPerCoder on Friday March 11, 2016 @01:35AM
(#11265016)
Usually some variant of: The PDF file contains binary data somewhere within it that will cause a particular PDF reader to misallocate memory. Because data and code are jammed next to each other when you run a program, a clever memory misallocation can be used to rewrite the program (the PDF reader) as it executes in order to execute whatever malicious commands the author of said PDF file intends.
The typical defenses against these attacks include:
* Exploit mitigation tools, such as EMET
* Writing applications to be more memory-safe
* Various other tactics, many of them disingenuous.
Re:How a hacker's typo helped stop a billion dollar bank heist
by cmdrfred on Thursday March 10, 2016 @11:06PM
(#11264582)
Why can't we escrow these say 10 million plus wire transfers for long enough to seek some form of two factor authentication? Fax a random code to the head office or something? Seems like a pretty weak system.
Re:How a hacker's typo helped stop a billion dollar bank heist
by unabridged on Thursday March 10, 2016 @11:50PM
(#11264703)
SWIFT and NY Fed are making many $10M+ transactions every hour, maybe every minute.
I am sure that the Bangladesh Central Bank could have requested daily or transaction limits for their accounts. But they most likely did not have that in place. Being a government bank they might make $20M transactions on a daily basis. They probably also could have 2-factor authentication, but that won't help you if its an inside job.
The most telling part of the story is that you can transfer $80M into Manila casinos (a city I didn't even know had casinos before today) and get that in chips without any trouble. I can't even imagine the volume of money flowing in Vegas or Macau casinos.
Re:How a hacker's typo helped stop a billion dollar bank heist
by ikeboy on Friday March 11, 2016 @12:09AM
(#11264766)
Still, their margins on 20M should be high enough to pay someone to manually check every transaction, within the amount of time it takes to become irreversible.
Re:How a hacker's typo helped stop a billion dollar bank heist
by krisgenre on Friday March 11, 2016 @01:23AM
(#11264974)
What's the point of transferring to a bank account? Wouldn't a bank account have an address associated with it? and some kind of ID proof of the account holder?
The subject of the email was "Please see attached documens" in which a PDF was attached that upon opening would hijack your email account and send the same. Over the first day, I had about 100 emails from coworkers in my inbox. After our "IT Security" team sent out an email claiming they stopped the threat, the following day more emails came from coworkers that was a slight variant but had more typos.
I still wonder what sort of breach occurred and whether our internal teams performed a true investigation... obviously a foreign intrusion and they managed to at least gain control of quite a few internal machines.
I still get a laugh out of using the same subject in an occasional email to coworkers...
I think I'm stuck at how code is able to execute when opening a document inside a PDF viewer or something of the sort. Thanks for sharing your story!
The typical defenses against these attacks include:
* Exploit mitigation tools, such as EMET
* Writing applications to be more memory-safe
* Various other tactics, many of them disingenuous.
http://www.malwaretracker.com/pdfthreat.php
I am sure that the Bangladesh Central Bank could have requested daily or transaction limits for their accounts. But they most likely did not have that in place. Being a government bank they might make $20M transactions on a daily basis. They probably also could have 2-factor authentication, but that won't help you if its an inside job.
The most telling part of the story is that you can transfer $80M into Manila casinos (a city I didn't even know had casinos before today) and get that in chips without any trouble. I can't even imagine the volume of money flowing in Vegas or Macau casinos.
Reminds me of http://www.theguardian.com/business/2015/oct/20/deutsche-ban...