Nmap Development: RE: Banner grabbing

["Brandon Enright" <bmenrigh () ucsd edu>]

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 () ucsd edu



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