The SIP scanners are adaptive.. less tha ... / 2010-11-01

The SIP scanners are adaptive.. less than a week after some very noisy SIP scans I noticed what is either a bit of distribution or a lot of scanners starting:

[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:12:50] NOTICE[8876] chan_sip.c: Registration from '"3164813366"<sip:3164813366@mm.nn.oo.pp>' failed for '124.181.83.62' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"2731788806"<sip:2731788806@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"1540737811"<sip:1540737811@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"100"<sip:100@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"101"<sip:101@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"102"<sip:102@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"103"<sip:103@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"104"<sip:104@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-10-31 23:53:30] NOTICE[8876] chan_sip.c: Registration from '"105"<sip:105@mm.nn.oo.pp>' failed for '218.206.248.132' - No matching peer found
[2010-11-01 00:12:04] NOTICE[8876] chan_sip.c: Registration from '"3002915279"<sip:3002915279@mm.nn.oo.pp>' failed for '62.224.47.239' - No matching peer found
[2010-11-01 00:25:01] NOTICE[8876] chan_sip.c: Registration from '"1291933398"<sip:1291933398@mm.nn.oo.pp>' failed for '201.240.145.112' - No matching peer found
[2010-11-01 00:51:52] NOTICE[8876] chan_sip.c: Registration from '"3816139978"<sip:3816139978@mm.nn.oo.pp>' failed for '187.14.130.217' - No matching peer found

Funny thing is another asterisk server saw the same patterns at the approximate same time from different IPs.