![]() Next we’ll fire up Wireshark, if you’ve got your permissions right and followed along, you should see a few more interfaces starting with usbmonX in the capture list.īecause the device I want to capture from is on Bus 2, we’ll select usbmon2 and start capturing,Īs you can see we’ve got a bit of a firehose of data, and we only care about device 10 on bus 2, so let’s filter for that. Yours will obviously be different, but you get the idea. SCR35xx USB Smart Card Reader” so I’ll jott down Bus 2 device 10. The reader I want to use is the “SCM Microsystems, Inc. Here you can see I have a Smart Card reader on Bus 1 device 03 and another on Bus 2 device 10. Ok, that’s all the prerequisites sorted, next we need to find the bus and device ID of our smart card reader, We’ve got to get some permissions setup, sudo adduser $USER wiresharkįollowed by a reboot to take effect, then we’ll run these two commands, which will need to be run each time we want to capture USB traffic: modprobe usbmon If you want to see what’s being sent between your phone and SIM card, the Osmocom SIMtrace is the device for you (And yes it also uses Wireshark for viewing this data!). While we’re working with Smart Card readers and SIM cards, capturing and Decoding USB traffic to see what APDUs are actually being sent can be super useful, so in this post we’ll look at how we can use Wireshark to sniff the USB traffic to view APDUs being sent to smart cards from other software.įor the purposes of this post I’ll be reading the SIM cards with pySim, but in reality it’ll work with any proprietary SIM software, allowing you to see what’s actually being said to the card by your computer. Under Edit → Preferences → Protocols → Thread CoAP:ĭisable LwMesh, Zigbee and Zigbee Green Power protocols under Analyze → Enabled protocols.I never cease to be amazed as to what I can do with Wireshark. Type 61631 in Additional CoAP port number (2). ![]() Type 19789 in Additional CoAP port number (1).Under Edit → Preferences → Protocols → CoAP: Type your monitoring Thread network mesh local prefix in Context 0.Under Edit → Preferences → Protocols → 6LoWPAN: As Key hash, select Thread hash used to derive key.As Security Suite, select AES-128 Encryption, 32 bits Integrity Protection.Type your monitoring Thread network master key in Decryption key 1.Under Edit → Preferences → Protocols → IEEE 802.15.4: The following configuration is valid for “Wireshark Version 2.1.0-Thread”. However, if the tool is used to monitor a Thread network it is recommended to configure Wireshark accordingly in order to display the complete information contained in the capture frames. The KiTools application can be used to monitor the traffic of a wide variety of applications based on the IEEE 802.15.4 wireless standard, since it is completely transparent to the protocols that are used on top of such Link Layer. The tool works for both Windows and UNIX platforms. The –file option can be used in this case combined with –live to provide the Wireshark binary path, if it is installed somewhere else. The additional –live option tries to open a Wireshark instance from its default installation path, and makes possible to see the captured traffic in real time. Python -m kitools –port COM36 –channel 26 –file “C:\Users\Kirale\mycapture.pcap” It is also possible to start a capture directly by providing the dongle’s port name, capture channel and output file name. If a KTDG102 USB Dongle is plugged in the computer, with the Sniffer firmware flashed and the proper drivers installed, the tool will detect it as a Kirale Sniffer and prompt the user for the desired channel, writing the captured packets in a PCAP file in the execution folder with a file name which includes the starting capture date. The open source KiTools project provides, among other functionalities, a simple way of starting a IEEE 802.15.4 packets capture, in both interactive and forced modes.
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