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Network Security Focus-Linux
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SMB : TCP/445 impossible to sniff a document sent to be printed to a MS

from [pejman . gohari] Network Security [Permanent Link]
Subject: SMB : TCP/445 impossible to sniff a document sent to be printed to a MS Spooler Server
Date: 19 Aug 2005 11:42:03 -0000 
Hi all, 

I'm focused on SMB sniffing: TCP/445 and I have basic architecture:
( PC --> Microsoft spooler server:TCP/445 --> Printer )

I would like to prove that it's possible to capture and decrypt all document 
sent by the PC to Microsoft Spooler server to be printed. 

With Ethereal/SMBspy or just tcpdump/tcpflow, it's possible to capture the data 
exchanged between the client and server ( PC --> spooler:TCP/445 ), but it?s a 
SMB file. In some case (with SMBspy, you can obtain a data file, which contain 
a PCL format file, but impossible to use it.

I tested SMBsniffer but it obtained just a result for file exchange between PC 
/ Windows File Server.

I found nothing on this subject in Internet,
So is it impossible to sniff a LAN to capture the document, which is sent to a 
Spooler to be printed?

If any idea ... 

Regards,
Pejman
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