Breaking

Notes on Hijacking GSM/GPRS Connections

As shown in previous blogposts we regularly work with GSM/GPRS basestations for testing devices with cellular uplinks or to simply run a private network during TROOPERS. Here the core difference between a random TROOPERS attendee and a device we want to hack is the will to join our network, or not! While at the conference we hand out own SIM cards which accept the TROOERPS GSM network as their “home network” some device need to be pushed a little bit.
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Building

Some Notes on Utilizing Telco Networks for Penetration Tests

After a couple of years in pentesting Telco Networks, I’d like to give you some insight into our pentesting methodology and setup we are using for testing “Mobile and Telecommunication Devices”. I am not talking about pentesting professional providers’ equipment (as in previous blogposts), it is about pentesting of devices that have a modem in place like a lot of IoT devices (you know about the fridge having a GSM Modem, right?) do.
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Events

TelcoSecDay 2016 – Second Round of Talks

I am very happy to announce the second round of talks for the TelcoSecDay 2016. As mentioned in my previous post it will take place on March 15th. All invitations should be out by now; if you think you can contribute to the group and you are willing to join us – please let me know (hschmidt@ernw.de).

Still, not all talks are confirmed but the newly published talks will provide an idea about TSD 2016 and its discussions.
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Events

Welcome to Brazil!

Welcome to Brazil!

“Welcome to Brazil”, I think, turned to being the most used statement during the past Hackers to Hackers Conference in Sao Paulo. It was used as the main reaction to every speech taking moment, and there were a lot of those! To honor the moments and give you a quick insight into was what going on in Sao Paulo, here is a quick summary of the overall event and our own contribution.

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Events

GSM@Troopers

Additionally to Wifi, Troopers is also offering a GSM network.
If you want to use it, simply ask your phone to scan for available mobile networks. There you should see the usual T-Mobile D, Vodafone.de, E-Plus, O2-de operators, but also the unusual D 23 or 262 23. Just select this one, and your are done. You also can use the Troopers SIMs which you get on the welcome desk on the ground floor.

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