What does the smartphone send to the network?

Question

Android

There is a smartphone on android, how to find out what applications are sending to the network, what data? For example, if I distribute WiFi from a PC and connect a smartphone, or if I use 3g.

Answer 1

The most "correct" method is described here - https://developer.android.com/tools/debugging/ddms.html
or wireshark) and have fun. This method is more reliable.
Even more reliable is a linux router to which a wifi router is connected, which takes the Internet from a linux router (read, an ordinary PC with two network cards) and distributes it via wifi (dump, respectively, on linux).
The most reliable is only your own femocell and dump traffic on it)
The reason for this is simple - many malware stops sending traffic when they "see" a connection to an adhoc network (direct connection to a PC via wifi) or a connection to a computer with debugging enabled. Much less often, they react in this way to connecting to an infrastructure network (router / access point), but I have not yet met routers with a normal tcpdump in nature.

Answer 2

Search for "Android Sniffer"

Answer 3

tPacketCapture writes logs, which can then be viewed via wireshark on a pc
. I will follow the branch - maybe they will offer something more convenient.

Answer 4

Option when the phone is working via Wi-Fi.
1. Install Charles
2. Find out the ip address of the machine on which Charles was installed
3. In the Wi-Fi settings of the phone, specify the proxy server (ip from the second point and port 8888)
4. See in Charles all http requests from all applications, including systemic.