On Thu, Sep 27, 2012 at 12:12:50PM -0400, Patrick W. Gilmore <patr...@ianai.net> wrote a message of 32 lines which said:
> I do not know of any name servers that reply to queries with UDP > packets filled with only the letter X. The DNS Headers alone > require more than the letter "X". Yes, you're right but I'm not sure we should take the original report too litterally. May be he meant there were a lot of X in the packets (and he missed the headers), which is consistent with DNS "large TXT" attacks such as the one described in <http://technet.microsoft.com/en-us/security/hh972393.aspx> (where the attacker filled with consecutive numbers, not X). Anyway, without the actual pcap file, it is only speculation.