# OSINT - Find cell

## Challenge description:

## Challenge files:
[challenge.txt](https://github.com/Cyb3rDoctor/DarkCTF/files/5291566/challenge.txt)

## Solution:



First of all, you need to understand what are these values: (**eNB ID, MCC and MNC**)

And here is a table that gives a simple explanation about (**eNB ID, MCC and MNC**):




...

In the challenge file, we have those 3 values:



310

410

81907



...

Now you need to identify those values **(I mean that you need to know which one is the eNB ID and which one is the MCC and which one is the MNC)**

To do that, search for a list of MCC and MNC, and here is a good one: (https://www.mcc-mnc.com/)




If you search for **310** in that site, you will find a lot of results, but if you search for **410**, you will find 8 results only, so it's better to check the fewer results:



Nice, you now know that:


Now you need to locate that cell tower...

One of the best sites to locate cell towers is (www.cellmapper.net)

You can search for a specific tower in cellmapper:




If you put the **eNB ID** there, you will find a tower:





**that's the tower you are looking for!**

(https://www.cellmapper.net/map?MCC=310&MNC=410&type=LTE&latitude=32.84644890905747&longitude=-24.554806096440018)

**darkCTF{32.8,-24.5}**

Original writeup (https://github.com/Cyb3rDoctor/DarkCTF/blob/master/Find_cell.md).