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Re: UDP payloads
From: David Fifield <david () bamsoftware com>
Date: Wed, 22 Jul 2009 11:55:42 -0600

On Sat, Jul 04, 2009 at 11:59:23AM +0200, kx wrote:
This sounds like a really good idea! Out of curiosity, have you
played with any of Unicornscan's UDP payloads?

http://osace.svn.sourceforge.net/viewvc/osace/trunk/etc/payloads.conf?view=markup

This is one of the reasons Unicornscan started as udpscan in 2004.

In their faq they recognize another udp scanner:
http://www.geocities.com/fryxar/scanudp.c

This perl script also has a lot of nice UDP payloads, including some from nmap:

https://labs.portcullis.co.uk/application/udp-proto-scanner/
Inside the tgz: udp-proto-scanner.conf

Here's a summary of payloads we might want to incorporate. Of this list,
I think the most likely candidates are 111/rpcbind, 177/xdmcp,
500/isakmp, 520/route, 1645/radius, 1812/radius, 2049/nfs,
5353/zeroconf, 5632/pcanywherestat. Those are the ones in the top 100
UDP ports, anyway. I would appreciate if some experts could examine
those payloads and comment on their safety.

I couldn't find what protocols unicornscan's payloads for ports 36
("aaaaa"), 921 ("\x00\x00\x00\x29\x00\x00\x00\x00..."), 7983 ("ping"),
and 31337 ("\xce\x63\xd1\xd2...") are for.

These programs all have non-empty payloads for ports like chargen,
daytime, netstat, systat, time, and qotd that respond to empty packets.
The only reason I can think of for this is that maybe firewalls will
drop packets with empty payloads before the services can respond. In
that case you could just use --data-length, but then you would lose the
port-specific payloads in the current implementation.

David Fifield

http://en.wikipedia.org/wiki/File_Service_Protocol
21 fsp "\x10\x44\xf0\x33\x04\x00\x00\x00\x00\x00\x00\x00"

# portmapper V2 GETPORT call
111 rpcbind 
"\x1f\xac\x4a\x1e\x00\x00\x00\x00\x00\x00\x00\x02\x00\x01\x86\xa0\x00\x00\x00\x02\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x86\xa0\x00\x00\x00\x02\x00\x00\x00\x11\x00\x00\x00\x00"

http://en.wikipedia.org/wiki/X_display_manager
177 xdmcp "\x00\x01\x00\x02\x00\x01\x00\x00"

500 isakmp "\x6e\x32\x4e\x49\x24\xf2\xbc\xbe\x00\x00\x00\x00\x00\x00\x00\x00"...

520 route "\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10"

523 ibm-db2 "\x44\x42\x32\x47\x45\x54\x41\x44\x44\x52\x00\x53\x51\x4c\x30\x38\x30\x32\x30"

http://support.citrix.com/article/CTX425548
1604 citrix 
"\x20\x00\x01\x30\x02\xfd\xa8\xe3\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

1645 radius 
"\x01\x86\x00\x35\x60\x05\x90\x90\x77\x74\x08\x14\xe8\xfa\xb9\x68\x96\x3d\xd1\xba\x01\x03\x61\x02\x12\xd1\x96\xe0\x60\x49\x22\xb5\x68\xca\xc0\xd3\xfc\xd5\x55\x43\x2f\x04\x06\xff\xff\xff\xff\x05\x06\x00\x00\x00\x01"

1812 radius 
"\x01\x86\x00\x35\x60\x05\x90\x90\x77\x74\x08\x14\xe8\xfa\xb9\x68\x96\x3d\xd1\xba\x01\x03\x61\x02\x12\xd1\x96\xe0\x60\x49\x22\xb5\x68\xca\xc0\xd3\xfc\xd5\x55\x43\x2f\x04\x06\xff\xff\xff\xff\x05\x06\x00\x00\x00\x01"

# Some online gaming thing?
2032 binderysupport "\\status\\"

2049 nfs 
"\x12\x34\x56\x78\x00\x00\x00\x00\x00\x00\x00\x02\x00\x01\x86\xa3\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

Older STUN, http://tools.ietf.org/html/rfc3489, CHANGE-REQUEST
3478 stun 
"\x00\x01\x00\x08\x12\x23\x34\x45\x56\x67\x78\x89\x90\x01\x12\x23\x34\x45\x56\x67\x00\x03\x00\x04\x00\x00\x00\x00"

Zeroconf DNS-based service discovery
5353 zeroconf 
"\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x09\x5f\x73\x65\x72\x76\x69\x63\x65\x73\x07\x5f\x64\x6e\x73\x2d\x73\x64\x04\x5f\x75\x64\x70\x05\x6c\x6f\x63\x61\x6c\x00\x00\x0c\x00\x01"

http://www.rootr.net/man/info/rplayd
5555 rplay "\x1e\x11\x00\x00" /* unicornscan says "needs work." */

5632 pcanywherestat "NQ"

5602 netop-rc 
"\xd6\x81\x81\x52\x00\x00\x00\xf3\x87\x4e\x01\x02\x32\x00\xa8\xc0\x00\x00\x01\x13\xc1\xd9\x04\xdd\x03\x7d\x00\x00\x0d\x00\x54\x48\x43\x54\x48\x43\x54\x48\x43\x54\x48\x43\x54\x48\x43\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x02\x32\x00\xa8\xc0\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

http://www-01.ibm.com/support/docview.wss?rs=0&q=%2BAFS&uid=swg21044407
7001 afs3-callback 
"\x00\x00\x03\xe7\x00\x00\x00\x00\x00\x00\x00\x65\x00\x00\x00\x00\x00\x00\x00\x00\x0d\x05\x00\x00\x00\x00\x00\x00"

http://dslinux.gits.kiev.ua/tags/uclinux/uclinux_20051014/user/nessus/nessus-plugins/scripts/amanda_detect.nasl
10080 amanda "Amanda 2.3 REQ HANDLE 000-65637373 SEQ 954568800\nSERVICE amanda\n"

http://www.tilion.org.uk/Games/Quake_3/Network_Protocol
27960 quake3 "\xff\xff\xff\xffgetchallenge\x00\x00"

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