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Nmap Development: RE: Banner grabbing

RE: Banner grabbing

From: Brandon Enright <bmenrigh_at_ucsd.edu>
Date: Fri, 13 Jan 2006 00:34:14 -0800

Joshua D. Abraham wrote:
>
> Hey Guys,
>
> Currently, I am building a tool that is based on nmap. I would like to
> be able to grab banners when performing an nmap scan. I looked briefly
> at the code and I believe that the banners are being captured and not
> displayed. Currently, I am using another tool to capture the banners
> and I would like to depreciate this dependency. My skills in C/C++
> are very rusty and I would really like to see this as a feature in
> nmap.
>
> Thanks,
> Joshua Abraham
>
>

You are looking for the Service Version flag "-sV". Nmap will try a number
of different payloads depending on the port and attempt to match against a
list of regular expressions.

If you are also operating system fingerprinting with "-O" you may want to
use "-A" instead which turns on both "-O" and "-sV".

Hope that helps.

Brandon

--
Brandon Enright
UCSD ACS/Network Operations
bmenrigh_at_ucsd.edu
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Received on Jan 13 2006
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