Enhanced Nigerian scam – linkedin style

Linkedin is a much better platform for Nigerian scammers: They now have my first and last name, information about me, etc. So they can craft the following letter (sent by this guy):

Hello Aviram Jenik,

I am Dr Sherif Akande, a citizen of Ghana, i work with Barclay’s Bank Ltd, Ghana. I have in my bank Existence of the Amount of money valued at $8.400,000.00, the big hurt Belongs to the customer, Peter B.Jenik, who Happen To Have The Same name as yours. The fund is now without any Claim Because, Peter B.Jenik, in a deadly earthquake in China in 2008. I want your cooperation so that bank will send you the fund as the beneficiary and located next of kin to the fund.

This transaction will be of a great mutual assistance to us. Send me your reply of interest so that i will give you the details. Strictly send it to my private email account {sherifakande48@gmail.com} or send me your email address to send you details of this transaction.

At the receipt of your reply, I will give you details of the transaction.I look forward to hear from you. I will send you a scan copy of the deposit certificate.

Send me an email to my private email account {sherifakande48@gmail.com}for more details of the transaction.

Best Regard’s
Dr Sherif Akande.
Here is my number +233548598269

Fuzzing Samsung Kies

Android fuzzing is always fun – seems that whenever we fuzz an android app it crashes within seconds.

Samsung Kies was no different. With the help of the talented Juan Yacubian (who built the Kies module in no time) we launched beSTORM against Kies… And saw it crash in record 23 seconds (just over 1,100 attack combinations).

Next on the agenda: install gdb for Android and build the proper payload.

Samsung Kies Crash


Nopcon 2013 is here

Douglas Adams is still right: No language has the phrase “As pretty as an airport”. But in my humble opinion, airports have come a long way in the last 10 years. Or maybe my expectations have become so low, I can’t be disappointed. Either way, it seems to me going through an airport isn’t as bad or boring or inconvenient as it used to be.
I’m not just talking about the East-Asian airports (Hong Kong, Seoul, Singapore) which have always been stellar. Even the infamous American airports are newer, and more convenient.

I’m giving you this airport cheer-leading chant because if you live in Europe, you should go and check out how much your airport has improved since you’ve last seen it. Then, take a flight to Istanbul. Not just because Istanbul is one of the nicest cities in Europe but also because Nopcon is taking place June 6, and has some very interesting and incredibly original speaker lineup: Moti Joseph, Nikita Tarakanov, Gökhan Alkan, Svetlana Gaivoronski, Canberk Bolat and Ahmet Cihan (aka Hurby). Nice!

More info here: http://www.nopcon.org/

S. Korea Cyber Attack Crashes Navigation Devices. Time to fuzz your GPS?

South Korea suffered a major cyber attack yesterday. The origin of the attack seems to be China at the moment, but that is far from being definite.

I happened to be in one of the (several) cyber security operation centers, by pure coincidence. I had a chance to see events unravel in real time. Several banks have been hit (including the very large shinhan bank) and a few broadcasting channels.

The damage is hard to assess, since it’s now in everyone’s advantage to blame the cyber attack on anything from a system crash to the coffee machine running out of capsules. Budget and political moves will dominate most of the data that will be released in the next few days.
It’s clear, however, that the damage substantial. I reached out to a few friends in technical positions at various MSPs and most had a sleepless night. They’ve been hit hard.

The most interesting part of this incident, in my opinion, was a report on car GPS crashing while the attack was taking place. I haven’t seen a news report about that yet, and I couldn’t personally verify it (as I mentioned, I was stationary at the time, watching the frantic cyber-security team getting a handle on a difficult situation) but this is making rounds in security forums and a couple of friends confirmed to me that their car navigation system crashed and had to be restarted, at the exact time the attack was taking place.

The most likely explanation is that the broadcasting companies, who send TPEG data to the GPS devices (almost every car in Korea has a GPS device, almost all get real-time updates via TPEG), had sent malformed data which caused the devices to crash. This data could have been just a result of a domino effect from the networks crashing, or it could have been a very sophisticated proof-of-concept by the attacker to see if they can create a distruption. Traffic in Seoul is bad even on a normal day; without GPS devices it can be a nightmare.

Which brings up an interesting point about fuzzing network devices. TPEG fuzzers have been available for a while now (beSTORM has a TPEG module, and you can easily write your own TPEG fuzzer). The difficult part is getting the GPS device to communicate with the fuzzing generator; this is something the GPS developer can do (but probably won’t) but it is also possible for a government entity to do the necessary configuration to make that happen, given the proper resources or simply by forcing the vendors to cooperate.

The choice of the attacker to bring down the broadcasting networks might be deliberate: other than knocking TV and radio off the air (an obvious advantage in a pre-attack strike) the broadcasting networks control many devices who rely on their data. Forcing them to send malformed data to crash a variety of devices can have interesting implications. If I was a little more naive, I would predict that this will push governments around the world to focus more on fuzzing to discover these kind of vulnerabilities before they see their adversaries exploit them. But in the world we live in, they will instead throw around the phrase “APT” and buy more “APT detection products” (an oximoron if I’ve ever heard one). Thank god for APT, the greatest job saving invention since bloodletting.

An detailed analysis of the attack here: