Shulou(Shulou.com)06/01 Report--

The official explanation for the meaning of the GsmMap project is as follows:

This tutorial explains how to populate this GSM security map on gsmmap.org with additional data for your location.

A general introduction:

The GsmMap project uses mobile phones supported by the osmocom-bb project to capture GSM data to correspond to the geographic location; then the user uploads it and is analyzed, and the results are displayed on the map on the project home page.

The main goal of the project is to establish the geographical distribution of the GSM network, then analyze the possibility of forgery, interception and tracking, and disclose the security of GSM on the official website.

Officially provide their own LiveCD, based on Debian, no xWindow, participating in the project can be foolishly used and grab the bag, use VirtualBOX or VMware to load, after boot, remember to connect the osmocom-bb C1room* series mobile phone and data cable to the virtual machine, and then follow the prompts to enter gsm to start.

Type gsm to start, but remember to mount your phone ~

The next step is to enter your phone model, because different phone models load different firmware. I am C118, which belongs to the C123xor category:

After selecting a good model, you will be prompted to press the boot button, in order to upload firmware, this person who has used osmocom-bb will know.

The next step is to scan nearby operators and channels:

Well, you can see that there are many base stations of China Unicom here, and the mobile is very bad. -the next step is to enter the nearest base station or something for testing, which can be selected by referring to the PWR value.

But in the end, when I enter my own TMSI, I have a headache in getting my own TMSI, and I don't know how to operate it. Officials say that some mobile phones (rarely) have this feature on their own, and the TMSI will change every time they connect, so I don't know how to get it for the time being. As for the phone, I didn't see it anyway, so the official use of LiveCD got stuck at this stage. Finally, I downloaded the gsmmap branch source code of osmocom-bb and tested it:

# download source code mkdir-p ~ / cell_loggercd ~ / cell_loggergit clone git://git.osmocom.org/osmocom-bb.git# download compiler wget http://gnuarm.com/bu-2.15_gcc-3.4.3-c-c++-java_nl-1.12.0_gi-6.1.tar.bz2tar xf bu-2.15_gcc-3.4.3-c-c++-java_nl-1.12.0_gi-6.1 .tar.bz2 # switch gsmmap branch cd ~ / cell_logger/osmocom-bbgit checkout-- track origin/luca/gsmmap# compiles source code cd srcexport PATH=$PATH:~/cell_logger/gnuarm-3.4.3/binmake

The above is the compilation step. In fact, the important thing is the step of switching branches. Nothing else is different. The next step is to load the firmware and start testing:

# load firmware cd ~ / cell_logger/osmocom-bb/src./host/osmocon/osmocon-m c123xor-p / dev/ttyUSB0. / target/firmware/board/compal_e88/layer1.compalram.bin# capture data mkdir-p ~ / cell_logger/capturescd ~ / cell_logger/captures../osmocom-bb/src/host/layer23/src/misc/cell_log# package data file cd ~ / cell_logger/capturestar cfz. / captures_ `date +% Y% m% d% H% M`.tgz *. Dat

Basically you start capturing before eating, and then you can stop after eating, then copy the package from the virtual machine and submit it through the contibute data button in the upper right corner of gsmmap.org.

The next day after I submitted it, it was shown that the data packet about China was submitted by me. With regard to the security of GSM, everyone knows what it is like in China. After I submitted it, it also showed on gsmmap that China Unicom had been shot.

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