I have a PCAP file that contains some SMB traffic showing the
file transfer from one PC to another. I'm trying to determine which is
the PC that initiates the file transfer. From Wireshark, I have the
following packets.
NT Create Andx Request, FID: 0x4007, Path: \abc.txt (1.1.1.1:49752 -> 2.2.2.2:445)
NT Create Andx Response, FID: 0x4007 (2.2.2.2:445 -> 1.1.1.1:49752)
...
Read Andx Request, FID: 0x4007, 32768 bytes at offset 0 (1.1.1.1:49752 -> 2.2.2.2:445)
Read Andx Response, FID: 0x4007, 32768 bytes (2.2.2.2:445 -> 1.1.1.1:49752)
...
I thought 1.1.1.1 was the one that started the file transfer to
2.2.2.2, since 1.1.1.1 is the one requesting and 2.2.2.2 is the one
responding. But in the
Read Andx Response packet, I see the
contents of the file being transferred. That confused me because if
those packets are carrying the file contents, doesn't that mean 2.2.2.2
is the one transferring the file to 1.1.1.1?Thank you.
Regards,
Rayne