Snort mailing list archives
Another Not IPv4 Datagram
From: "Mike Maki" <mmaki () adelphia net>
Date: Wed, 17 Dec 2003 15:25:13 -0800
I've found one of my OpenBSD 3.3 Samba file servers is broadcasting a bogus packet every 12 minutes (Header length: 0 bytes). It looks to me like an NT browser election request or response. Snort alerts it as "Not IPv4 datagram!" Is the packet actually malformed? My other OBSD Samba servers don't do this. The full packet is below. Thanks for any ideas. Mike Frame 4 (264 bytes on wire, 264 bytes captured) Packet Length: 264 bytes Capture Length: 264 bytes Ethernet II, Src: 00:30:6e:11:b1:73, Dst: ff:ff:ff:ff:ff:ff Destination: ff:ff:ff:ff:ff:ff (Broadcast) Source: 00:30:6e:11:b1:73 (HewlettP_11:b1:73) Type: IP (0x0800) Internet Protocol Version: 0 Header length: 0 bytes (bogus, must be at least 20) 0000 ff ff ff ff ff ff 00 30 6e 11 b1 73 08 00 00 00 .......0n..s.... 0010 00 00 00 00 00 00 00 11 00 e6 a5 53 4e 0c a5 53 ...........SN..S 0020 4e 7f 00 8a 00 8a 00 e6 00 00 11 0a 19 28 a5 53 N............(.S 0030 4e 0c 00 8a 00 d0 00 00 20 45 4a 45 4f 46 41 46 N....... EJEOFAF 0040 44 45 42 45 4e 45 50 43 4e 45 49 46 42 45 48 45 DEBENEPCNEIFBEHE 0050 4a 46 44 44 42 43 41 41 41 00 20 46 44 45 42 45 JFDDBCAAA. FDEBE 0060 4e 45 50 45 49 46 42 43 41 43 41 43 41 43 41 43 NEPEIFBCACACACAC 0070 41 43 41 43 41 43 41 43 41 42 4e 00 ff 53 4d 42 ACACACACABN..SMB 0080 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 %............... 0090 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 36 ...............6 00a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00b0 00 00 00 36 00 56 00 03 00 01 00 01 00 02 00 47 ...6.V.........G 00c0 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 .\MAILSLOT\BROWS 00d0 45 00 01 3a 80 fc 0a 00 49 4e 50 53 41 4d 4f 2d E..:....INPSAMO- 00e0 48 51 47 49 53 31 00 00 04 09 03 9b 00 00 0f 01 HQGIS1.......... 00f0 55 aa 47 49 53 20 53 61 6d 62 61 20 46 69 6c 65 U.GIS Samba File 0100 20 53 65 72 76 65 72 00 Server. ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
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- Another Not IPv4 Datagram Mike Maki (Dec 17)