No, there is no payload. On Tue, 03 Jun 2003 15:54:08 -0700 morning_wood <se_cur_ityat_private> wrote: >is there no content? > > >----- Original Message ----- >From: <sec_slaveat_private> >To: <intrusionsat_private>; <incidentsat_private> >Sent: Tuesday, June 03, 2003 2:03 PM >Subject: Help with an odd log file... > > >> >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Hello. >> >> I am looking for some assistance in trying to identify the nature >of >> a suspected scan/attack against my corporate network. >> >> The scan/attack includes spoofed source addresses that cover a >wide range >> of IP networks. There is also a relationship between source and >> destination addresses and ports for each entry. Each combination >of >> address and port information appears between 3 and 8 times, all >trickled >> in over a 3 day period. Normally, something like this might be >identified >> as a TCP SYN SCAN, but the traffic is coming in too slowly and >the >destination >> ports are all upper level ports (as you can see). >> >> The pattern is one with which I am not familiar and would appreciate >> your assistance in identifying. >> >> Thnx, >> >> >> >> >> Sorted by source IP: >> >> Date/Time Source IP/Port Dest IP/Port >> May 25 13:53:48 2.66.161.64:55518 XX6.X37.153.7:61323 >> May 26 04:34:53 2.66.161.64:55518 XX6.X37.153.7:61323 >> May 26 23:29:58 2.66.161.64:55518 XX6.X37.153.7:61323 >> May 27 08:20:55 2.66.161.64:55518 XX6.X37.153.7:61323 >> May 27 15:39:08 2.66.161.64:55518 XX6.X37.153.7:61323 >> May 26 12:03:34 2.71.250.0:54845 XX6.X37.54.171:5929 >> May 26 20:54:18 2.71.250.0:54845 XX6.X37.54.171:5929 >> May 27 16:49:56 2.71.250.0:54845 XX6.X37.54.171:5929 >> May 25 06:18:33 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 25 10:16:48 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 26 05:04:11 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 27 07:28:50 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 27 15:37:04 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 27 16:28:04 2.86.7.241:56883 XX6.X37.41.151:21012 >> May 27 10:11:14 2.95.43.255:12430 XX6.X37.29.228:9577 >> May 25 08:30:38 2.95.43.255:12430 XX6.X37.29.228:9577 >> May 26 07:56:32 2.95.43.255:12430 XX6.X37.29.228:9577 >> May 26 18:55:34 2.95.43.255:12430 XX6.X37.29.228:9577 >> May 26 20:22:41 2.95.43.255:12430 XX6.X37.29.228:9577 >> Etc. >> >> ---break for brevity's sake--- >> 6353 lines removed >> >> May 26 05:38:31 221.237.154.247:45635 XX6.X37.48.56:8199 >> May 26 08:13:10 221.237.154.247:45635 XX6.X37.48.56:8199 >> May 26 09:23:33 221.237.154.247:45635 XX6.X37.48.56:8199 >> May 26 17:30:12 221.237.154.247:45635 XX6.X37.48.56:8199 >> May 27 09:55:22 221.237.154.247:45635 XX6.X37.48.56:8199 >> May 25 18:02:24 222.6.30.78:55945 XX6.X37.12.103:32430 >> May 26 23:28:25 222.6.30.78:55945 XX6.X37.12.103:32430 >> May 27 03:23:43 222.6.30.78:55945 XX6.X37.12.103:32430 >> May 26 09:12:56 222.12.8.159:40062 XX6.X37.39.135:43096 >> May 26 23:02:06 222.12.8.159:40062 XX6.X37.39.135:43096 >> May 26 23:53:30 222.12.8.159:40062 XX6.X37.39.135:43096 >> May 27 13:32:13 222.12.8.159:40062 XX6.X37.39.135:43096 >> May 26 12:28:58 222.20.24.164:3281 XX6.X37.21.175:27751 >> May 26 21:26:42 222.20.24.164:3281 XX6.X37.21.175:27751 >> May 26 22:10:47 222.20.24.164:3281 XX6.X37.21.175:27751 >> May 27 11:04:40 222.20.24.164:3281 XX6.X37.21.175:27751 >> May 27 13:31:51 222.20.24.164:3281 XX6.X37.21.175:27751 >> May 27 15:36:37 222.20.24.164:3281 XX6.X37.21.175:27751 >> Etc. >> >> >> >> Captured Frame Sample: >> >> Frame 1 (66 bytes on wire, 66 bytes captured) >> Arrival Time: May 27, 2003 14:13:58.220746000 >> Time delta from previous packet: 0.000000000 seconds >> Time relative to first packet: 0.000000000 seconds >> Frame Number: 1 >> Packet Length: 66 bytes >> Capture Length: 66 bytes >> Ethernet II, Src: 00:00:0c:95:72:bd, Dst: 00:60:91:0b:45:35 >> Destination: 00:60:98:0d:45:35 (3Com_0d:45:35) >> Source: 00:00:0c:95:78:bd (Cisco_95:78:bd) >> Type: IP (0x0800) >> Internet Protocol, Src Addr: 155.128.250.228 (155.128.250.228), > Dst Addr: >> XX6.X37.151.97 (XX6.X37.151.97) >> Version: 4 >> Header length: 20 bytes >> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: >0x00) >> 0000 00.. = Differentiated Services Codepoint: Default >(0x00) >> .... ..0. = ECN-Capable Transport (ECT): 0 >> .... ...0 = ECN-CE: 0 >> Total Length: 52 >> Identification: 0xb82b >> Flags: 0x00 >> .0.. = Don't fragment: Not set >> ..0. = More fragments: Not set >> Fragment offset: 0 >> Time to live: 118 >> Protocol: TCP (0x06) >> Header checksum: 0xc248 (correct) >> Source: 155.128.250.228 (155.128.250.228) >> Destination: XX6.X37.151.97 (XX6.X37.151.97) >> Transmission Control Protocol, Src Port: 866 (866), Dst Port: >26469 >(26469), >> Seq: 1409168989, Ack: 0, Len: 0 >> Source port: 866 (866) >> Destination port: 26469 (26469) >> Sequence number: 1409168989 >> Header length: 32 bytes >> Flags: 0x0002 (SYN) >> 0... .... = Congestion Window Reduced (CWR): Not set >> .0.. .... = ECN-Echo: Not set >> ..0. .... = Urgent: Not set >> ...0 .... = Acknowledgment: Not set >> .... 0... = Push: Not set >> .... .0.. = Reset: Not set >> .... ..1. = Syn: Set >> .... ...0 = Fin: Not set >> Window size: 55808 >> Checksum: 0xd5a2 (correct) >> Options: (12 bytes) >> Maximum segment size: 1460 bytes >> NOP >> Window scale: 2 (multiply by 4) >> NOP >> NOP >> SACK permitted >> -----BEGIN PGP SIGNATURE----- >> Note: This signature can be verified at https://www.hushtools.com/verify >> Version: Hush 2.3 >> >> wkYEARECAAYFAj7dDSgACgkQbTw24P1BTGJXaQCgsLPS0niweOjKLZSIRKUVWioqoTAA >> oIDwlD0AxJojtPAhIdlunJmyAG1R >> =US/J >> -----END PGP SIGNATURE----- >> >> >> >> >> Concerned about your privacy? Follow this link to get >> FREE encrypted email: https://www.hushmail.com/?l=2 >> >> Free, ultra-private instant messaging with Hush Messenger >> https://www.hushmail.com/services.php?subloc=messenger&l=434 >> >> Big $$$ to be made with the HushMail Affiliate Program: >> https://www.hushmail.com/about.php?subloc=affiliate&l=427 >> >> -------------------------------------------------------------- >------------ >-- >> -------------------------------------------------------------- >------------ >-- >> >> > > Concerned about your privacy? Follow this link to get FREE encrypted email: https://www.hushmail.com/?l=2 Free, ultra-private instant messaging with Hush Messenger https://www.hushmail.com/services.php?subloc=messenger&l=434 Big $$$ to be made with the HushMail Affiliate Program: https://www.hushmail.com/about.php?subloc=affiliate&l=427 ---------------------------------------------------------------------------- ----------------------------------------------------------------------------
This archive was generated by hypermail 2b30 : Thu Jun 05 2003 - 08:37:10 PDT