Proxmark Pro - Sniffing a Mifare Desfire 4K Tag
This post covers how to sniff a Mifare Desfire 4K tag with the ProxmarkPro.
For this blog post you will need the following:
- ProxmarkPro
- Mifare Desfire 4K Tag
- High Frequency Reader
1. Navigate to HF Sniff section. HF 13.56MHz -> Sniff ISO14A.
2. Place ProxmarkPro HF antenna over reader and begin sniffing.
3. Place Mifare Desfire 4K tag over ProxmarkPro antenna and reader. Allow some time for the ProxmarkPro to sniff the traffic. Stop the ProxmarkPro by pressing the <- button. The information will now be saved to a folder on the SD Card called SNIFF14A under SNIFF#.txt.
4. Eject your SD card and connect it to your computer. When you open the SNIFF#.txt file you should see traffic similar to the example below.
Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer iso14443a - All times are in carrier periods (1/13.56Mhz) iClass - Timings are not as accurate Start | End | Src | Data (! denotes parity error) | CRC | Annotation | -----------|-----------|-----|-----------------------------------------------------------------|-----|--------------------| 0 | 256 | Tag | 00! | | 97440 | 97632 | Tag | 01 | | 405580 | 406636 | Rdr | 26 | | REQA 4585596 | 4586652 | Rdr | 26 | | REQA 8765612 | 8766668 | Rdr | 26 | | REQA 8766668 | 8768224 | | fdt (Frame Delay Time): 1556 8768224 | 8770208 | Tag | e8! 20 | | 8777356 | 8782124 | Rdr | 50 00 57 cd | | HALT 9317164 | 9318220 | Rdr | 26 | | REQA 9318220 | 9319392 | | fdt (Frame Delay Time): 1172 9319392 | 9321760 | Tag | 44 03 | | 9329068 | 9331532 | Rdr | 93 20 | | ANTICOLL 9331532 | 9332720 | | fdt (Frame Delay Time): 1188 9332720 | 9338544 | Tag | 88 04 41 62 af | | 9346172 | 9356700 | Rdr | 93 70 88 04 41 62 af b7 2c | | SELECT_UID 9356700 | 9357872 | | fdt (Frame Delay Time): 1172 9357872 | 9361392 | Tag | 24 d8 36 | | 9368572 | 9371036 | Rdr | 95 20 | | ANTICOLL-2 9371036 | 9372208 | | fdt (Frame Delay Time): 1172 9372208 | 9378032 | Tag | ba 4d 3c 80 4b | | 9385660 | 9396188 | Rdr | 95 70 ba 4d 3c 80 4b 53 5d | | ANTICOLL-2 9396188 | 9397360 | | fdt (Frame Delay Time): 1172 9397360 | 9400944 | Tag | 20 fc 70 | | 9408236 | 9413004 | Rdr | e0 81 b8 62 | | RATS 9413004 | 9414176 | | fdt (Frame Delay Time): 1172 9414176 | 9423456 | Tag | 06 75 77 81 02 80 02 f0 | | 9436860 | 9442716 | Rdr | d1 11 0a d4 53 | | ? 9442716 | 9443952 | | fdt (Frame Delay Time): 1236 9443952 | 9447472 | Tag | d1 fa 96 | | 9752192 | 9752448 | Tag | 00!
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