Re: UDP payloads

["Luis M." <luis.mgarc () gmail com>]

David Fifield wrote:
> During the ping probe effectiveness research, we found that UDP probes
> that have a payload work better than those without, and probes with a
> payload specific to the protocol work better still. As well as being
> more effective for host discovery, meaningful payloads sometimes allow a
> port to be classified as open rather than open|filtered.
>
> I have in a branch code that sends protocol payloads for ports 53, 123,
> 137, 161, and 1434.
>       svn co --username guest --password "" svn://svn.insecure.org/nmap-exp/david/nmap-payloads
> The payloads are taken from nmap-service-probes. They are:
>
> 53: DNSStatusRequest "\0\0\x10\0\0\0\0\0\0\0\0\0"
> 123: NTPRequest 
> "\xe3\x00\x04\xfa\x00\x01\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc5\x4f\x23\x4b\x71\xb1\x52\xf3"
> 137: NBTStat "\x80\xf0\0\x10\0\x01\0\0\0\0\0\0\x20\x43\x4bAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\0\0\x21\0\x01"
> 161: SNMPv3GetRequest 
> "\x30\x3a\x02\x01\x03\x30\x0f\x02\x02\x4a\x69\x02\x03\0\xff\xe3\x04\x01\x04\x02\x01\x03\x04\x10\x30\x0e\x04\0\x02\x01\0\x02\x01\0\x04\0\x04\0\x04\0\x30\x12\x04\0\x04\0\xa0\x0c\x02\x02\x37\xf0\x02\x01\0\x02\x01\0\x30\0"
> 1434: Sqlping "\x02"
>   

This could also be useful for Nping in UDP mode. I'll add it to the TODO
list. I could add a flag, something like --proto-payload, that adds
those payloads based on target port numbers. What do you think?


Luis.






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