Re: Large increase in port 27347

[Jeff Kell <jeff-kell () utc edu>]

Jeff Kell wrote:

> kyle.r.maxwell () verizon com wrote:
>
> > As Mark pointed out, this activity is on TCP 27347, not TCP 27374. 
> > Although I wonder if there's some scanning out there based on a typo 
> > in the port number?
>
> We received a number of hits today to the same IP from a number of sources:
>
> > Oct 30 09:16:36.395 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 207.109.175.94(64462) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 09:21:06.752 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 24.121.8.71(4383) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 09:40:50.378 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 24.229.177.37(4165) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 10:44:25.997 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 24.238.68.114(4131) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 10:58:41.578 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 68.60.47.101(1941) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 11:33:51.109 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 68.79.5.17(3889) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 11:57:54.483 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 68.122.191.11(4771) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 12:28:41.678 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 68.52.149.156(4038) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 13:05:24.819 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 4.41.167.109(1181) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 15:38:19.290 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 68.8.239.92(2163) -> aa.bb.cc.dd(27347), 1 packet
> > Oct 30 15:45:50.710 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 
> > 65.93.88.39(3832) -> aa.bb.cc.dd(27347), 1 packet

Let me add to my own posting that the address attacked was a router, in 
a subnet belonging to our provider.  They are still occurring today, to 
the same destination IP:

> Oct 31 04:14:25.771 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 68.76.50.182(4593) -> aa.bb.cc.dd(27347), 1 packet
> Oct 31 05:00:16.595 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 68.38.108.118(3341) -> aa.bb.cc.dd(27347), 1 
> packet
> Oct 31 06:11:33.595 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 68.5.9.141(3301) -> aa.bb.cc.dd(27347), 1 packet
> Oct 31 07:48:10.154 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 68.6.112.27(3239) -> aa.bb.cc.dd(27347), 1 packet
> Oct 31 12:14:14.993 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 67.66.225.178(4223) -> aa.bb.cc.dd(27347), 1 
> packet
> Oct 31 12:30:43.715 EST: %SEC-6-IPACCESSLOGP: list ingress denied tcp 68.109.77.86(3115) -> aa.bb.cc.dd(27347), 1 packet




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