We have also been seeing this activity for several days now. It is all directed to port 445. I assume it is some type of port harvesting attempt and have been paying close attention to Internet facing hosts. 11/05/2002 11:17:08.352 - IP spoof detected - Source:0.0.0.0, 3442, WAN - Destination:a.b.c.120, 445, LAN - 11/05/2002 10:25:20.592 - IP spoof detected - Source:0.0.0.0, 1488, WAN - Destination:a.b.d.96, 445, LAN 11/05/2002 08:58:16.688 - IP spoof detected - Source:0.0.0.0, 2062, WAN - Destination:a.b.e.61, 445, LAN 11/05/2002 08:25:21.768 - IP spoof detected - Source:0.0.0.0, 2537, WAN - Destination:a.b.f.127, 445, LAN - Ingersoll, Jared wrote: > I was hoping someone could tell me whether this is a misconfigured device > (perhaps) or is this activity I should be concerned with (and please keep > any witless banter regarding my use of 'concerned with' to yourself- > thanks!). > > These are SYSLOG entries from my firewall (PIX). (the x.x.x.X are static > address on the external interface). > > -Jared > > urchin 7% grep spoof oSYSLOG > Nov 1 01:42:44 2U:10.1.1.1 Nov 01 2002 01:50:32: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.5 > Nov 1 01:58:04 2U:10.1.1.1 Nov 01 2002 02:05:51: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.34 > Nov 1 02:41:50 2U:10.1.1.1 Nov 01 2002 02:49:37: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.37 > Nov 1 04:36:35 2U:10.1.1.1 Nov 01 2002 04:44:22: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.19 > Nov 1 08:18:42 2U:10.1.1.1 Nov 01 2002 08:26:30: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.16 > Nov 1 08:27:31 2U:10.1.1.1 Nov 01 2002 08:35:19: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.32 > Nov 1 09:32:08 2U:10.1.1.1 Nov 01 2002 09:39:56: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.33 > Nov 1 10:42:02 2U:10.1.1.1 Nov 01 2002 10:49:48: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.34 > Nov 1 18:33:05 2U:10.1.1.1 Nov 01 2002 18:40:51: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.21 > Nov 2 00:10:06 2U:10.1.1.1 Nov 02 2002 00:17:53: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.7 > Nov 2 01:54:34 2U:10.1.1.1 Nov 02 2002 02:02:20: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.35 > Nov 2 08:22:47 2U:10.1.1.1 Nov 02 2002 08:30:33: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.21 > Nov 2 16:18:40 2U:10.1.1.1 Nov 02 2002 16:26:29: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.33 > Nov 2 20:33:58 2U:10.1.1.1 Nov 02 2002 20:41:45: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.22 > Nov 2 22:31:45 2U:10.1.1.1 Nov 02 2002 22:39:34: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.15 > urchin 8% grep spoof SYSLOG > Nov 3 03:49:52 2U:10.1.1.1 Nov 03 2002 03:57:39: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.33 > Nov 3 06:58:18 2U:10.1.1.1 Nov 03 2002 07:06:07: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.37 > Nov 3 08:06:33 2U:10.1.1.1 Nov 03 2002 08:14:21: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.22 > Nov 3 12:32:45 2U:10.1.1.1 Nov 03 2002 12:40:34: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.15 > Nov 3 16:51:02 2U:10.1.1.1 Nov 03 2002 16:58:50: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.30 > Nov 3 19:30:21 2U:10.1.1.1 Nov 03 2002 19:38:11: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.39 > Nov 3 21:04:12 2U:10.1.1.1 Nov 03 2002 21:12:00: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.33 > Nov 4 00:31:34 2U:10.1.1.1 Nov 04 2002 00:39:24: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.5 > Nov 4 03:06:55 2U:10.1.1.1 Nov 04 2002 03:14:44: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.12 > Nov 4 03:16:12 2U:10.1.1.1 Nov 04 2002 03:24:01: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.15 > Nov 4 04:03:17 2U:10.1.1.1 Nov 04 2002 04:11:05: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.13 > Nov 4 04:08:19 2U:10.1.1.1 Nov 04 2002 04:16:08: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.16 > Nov 4 04:21:53 2U:10.1.1.1 Nov 04 2002 04:29:41: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.30 > Nov 4 05:27:16 2U:10.1.1.1 Nov 04 2002 05:35:04: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.30 > Nov 4 08:38:26 2U:10.1.1.1 Nov 04 2002 08:46:16: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.34 > Nov 4 13:33:28 2U:10.1.1.1 Nov 04 2002 13:41:18: %PIX-2-106016: Deny IP > spoof from (0.0.0.0) to x.x.x.19 > > ---------------------------------------------------------------------------- > This list is provided by the SecurityFocus ARIS analyzer service. > For more information on this free incident handling, management > and tracking system please see: http://aris.securityfocus.com > > > -- ******************************* * Mike Maxwell GCIA * * System Manager--GMA * * mmaxwellat_private * ******************************* ---------------------------------------------------------------------------- This list is provided by the SecurityFocus ARIS analyzer service. 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