How to copy hex data of captured packet form wireshark - network-programming

Question

here is the example
this is the captured packet data
00000000 00 6e 0b 00 .n..
00000004 4d 5a e8 00 00 00 00 5b 52 45 55 89 e5 81 c3 81 MZ.....[ REU.....
00000014 12 00 00 ff d3 89 c3 57 68 04 00 00 00 50 ff d0 .......W h....P..
00000024 68 f0 b5 a2 56 68 05 00 00 00 50 ff d3 00 00 00 h...Vh.. ..P.....
00000034 00 00 00 00 00 00 00 00 00 00 00 00 e0 00 00 00 ........ ........
00000044 0e 1f ba 0e 00 b4 09 cd 21 b8 01 4c cd 21 54 68 ........ !..L.!Th
00000054 69 73 20 70 72 6f 67 72 61 6d 20 63 61 6e 6e 6f is progr am canno
00000064 74 20 62 65 20 72 75 6e 20 69 6e 20 44 4f 53 20 t be run in DOS
00000074 6d 6f 64 65 2e 0d 0d 0a 24 00 00 00 00 00 00 00 mode.... $.......
and i want only the hex part like this
00 6e 0b 00
4d 5a e8 00 00 00 00 5b 52 45 55 89 e5 81 c3 81
12 00 00 ff d3 89 c3 57 68 04 00 00 00 50 ff d0
I try right click on the packet and select copy -> bytes ->hex stream
but the hex data I got doesn't look like the above data at all
so How Can I copy hex data of captured packet form wireshark ?
thanks for reading

Answer 1

On the Wireshark "packet list" panel, right click the packet you want and:
1) if you select Copy->Bytes->Hex stream, you'll get the hex digits as one long string without white spaces
39cb08004528053f000000006f1105faac11745dac11740c039......
2) if you select Copy->Bytes->Offset Hex, you'll get the hex digits as displayed on the GUI , including the offset of each line starting byte (frame offset)
0010 05 3f 00 00 00 00 6f 11 05 fa ac 11 74 5d ac 11
0020 74 0c 03 9e 03 9d 05 2b 00 00 07 e0 8f ee 8f 1c
0030 ff 00 00 00 00 00 09 0f 00 58 39 cb 60 00 00 00
0040 11 80 08 00 73 00 02 44 00 00 00 00 03 dd de de

Answer 2

You can use TShark.
TShark is shipped with Wireshark.
Use command:
tshark -x -r dns.pcapng frame.number == 10
Output:
D:\Wireshark>tshark -r dns.pcapng frame.number == 10 -x
0000 00 25 9c ca 94 fe 90 e6 ba 71 70 03 08 00 45 00 .%.......qp...E.
0010 00 3f 6d 61 00 00 80 11 7d dc 0a 01 01 0a 11 22 .?ma....}......"
0020 33 44 f0 1d 00 35 00 2b be 3e 71 dd 01 00 00 01 3D...5.+.>q.....
0030 00 00 00 00 00 00 0d 73 74 61 63 6b 6f 76 65 72 .......stackover
0040 66 6c 6f 77 03 63 6f 6d 00 00 ff 00 01 flow.com.....
Copy and paste the hex part.
Hope this helps

Answer 3

If there are several packets you're interested in, you can export them to a file.
mark those packets (right click on each packet then Mark Packet (toggle) or Ctrl + M)
choose File > Export > File.... Make sure you select Marked packets.
if you're only interested in the hex data, make sure only Packet Bytes is checked in Packet Format
Note that when exporting you also have the choice with First to last marked as well as Range, if the interesting packets are next to each other.