Rob van der Putten <email@example.com> wrote in <firstname.lastname@example.org >:
> A bit of Analog style log processing;
> Of you strip leading stuff like '00' and '011', you end up with numbers
> like 442035199055 and 442035199098.
I had a look at the attempts I logged on an asterisk server and while I did
notice the attempts to reach UK numbers in a likewise pattern I can't find
any attempts to reach the exact same numbers.
Either there are a lot of attackers trying this or they select a UK number,
give it a few tries and drop it immediately.
For added fun I answer those calls, play a random 'this number is not in
service' recording from somewhere around the world .. and I record the
incoming and outgoing audio. Sofar this got me a recording of a lot of
Koos van den Hout, PGP keyid DSS/1024 0xF0D7C263 via keyservers email@example.com
IPv6: Think ::/0, act ::1. http://idefix.net/
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