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Brett, who alerted us earlier this month regarding the mass exploit against Linksys devices has surfaced a current issue he's facing with ongoing NTP amplification attacks. A good US-CERT summary of the attack is here: https://www.us-cert.gov/ncas/alerts/TA14-013A. Brett indicates that: "We are seeing massive attacks on our NTP servers, attempting to exploit the traffic amplification vulnerability reported last month. Our IPs are being probed by an address in the Netherlands, and a couple of them -- at which unpatched servers were discovered -- are being hit with about 3 million spoofed packets per hour. (We've since patched and firewalled the vulnerable servers, but the packets keep coming.) The spoofed packets are crafted so that they appear to be originating mostly from port 53 and 80, but occasionally have other port numbers such as 3074 (XBox) and 6667 (IRC). This is a very serious attack for us, and I'd appreciate some help in alerting folks to it." He also sent along a 8 second packet capture that I've visualized as seen below.
According to Brett, folks receiving similar traffic will see numerous "monitor" queries from spoofed source addresses and ports. His ISP is receiving roughly 3 million of these packets every hour, aimed at 3 IP addresses that belonged to FreeBSD servers that were vulnerable in their default configurations, servers that have now been patched and firewalled. He reminds us that even when The FreeBSD Project's patch has been applied, a vulnerable server will continue to respond to the queries with an equal number of rejection packets. While the patch eliminates the traffic amplification, the traffic is still echoed and its origin is further obscured. If readers are seeing similar traffic, please provide details in comments here.
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Russ McRee 201 Posts ISC Handler Feb 26th 2014 |
| Thread locked Subscribe |
Feb 26th 2014 7 years ago |
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Somebody could make a quick buck right now by making a plug and play GPS-based / Wifi enabled NTP master device.
I tried using a Wifi-networked raspberry Pi for this at home, but the Pi OS wasn't stable enough, it kept crashing. A slightly beefier platform, maybe like the new Intel Galileo, would be needed. NTP clients didn't have any problems with the slight latency and litter of a Wifi based server, it's a pretty beefy protocol (well, except for this monlist thing ..  . |
Anonymous |
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Feb 26th 2014 7 years ago |
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Reader Timothy sent along a log sample and these notes:
"The Diary mentioned IP ADDRESS 93.174.95.119 (NL) so I opened up the filter on the IP slightly to get this report. Will look at my other reports to see if any additional information available to isolate the sources. Have not been getting the volume that others are seeing but am losing connection with the NTP servers in use for time." date time Source_IP Source_Port____Target_IP____Target_Port ---------- -------- ------------- --------------------------------------- 2014-02-01 05:43:18 93.174.95.82 44069 70.130.xxx.xxx 8080 2014-02-01 05:45:05 93.174.95.82 44069 70.130.xxx.xxx 8080 2014-02-02 11:15:57 93.174.93.83 7671 70.130.xxx.xxx 80 2014-02-02 11:17:25 93.174.93.83 7671 70.130.xxx.xxx 80 2014-02-01 05:43:18 93.174.95.82 44069 70.130.xxx.xxx 8080 2014-02-01 05:45:05 93.174.95.82 44069 70.130.xxx.xxx 8080 2014-02-02 11:15:57 93.174.93.83 7671 70.130.xxx.xxx 80 2014-02-02 11:17:25 93.174.93.83 7671 70.130.xxx.xxx 80 2014-02-04 03:13:45 93.174.93.196 7678 70.130.xxx.xxx 53 2014-02-04 03:15:20 93.174.93.196 7678 70.130.xxx.xxx 53 2014-02-05 01:05:35 93.174.93.196 7671 70.130.xxx.xxx 80 2014-02-05 01:06:45 93.174.93.196 7671 70.130.xxx.xxx 80 2014-02-05 07:49:18 93.174.93.98 37933 70.130.xxx.xxx 19 2014-02-05 07:50:26 93.174.93.98 37933 70.130.xxx.xxx 19 2014-02-05 09:59:59 93.174.93.102 33239 70.130.xxx.xxx 19 2014-02-05 10:00:46 93.174.93.105 58647 70.130.xxx.xxx 19 2014-02-05 10:01:58 93.174.93.102 33239 70.130.xxx.xxx 19 2014-02-05 10:01:58 93.174.93.105 58647 70.130.xxx.xxx 19 2014-02-06 12:41:35 93.174.93.83 7678 70.130.xxx.xxx 53 2014-02-09 03:12:42 93.174.95.63 32998 70.130.xxx.xxx 3389 2014-02-09 03:14:06 93.174.95.63 32998 70.130.xxx.xxx 3389 2014-02-09 10:03:03 93.174.95.63 42935 70.130.xxx.xxx 5631 2014-02-09 10:04:48 93.174.95.63 42935 70.130.xxx.xxx 5631 2014-02-10 11:43:51 93.174.95.63 46184 70.130.xxx.xxx 3389 2014-02-10 11:45:10 93.174.95.63 46184 70.130.xxx.xxx 3389 2014-02-10 12:27:55 93.174.93.72 48112 70.130.xxx.xxx 53 2014-02-10 12:29:21 93.174.93.72 48112 70.130.xxx.xxx 53 2014-02-10 14:07:18 93.174.93.51 58575 70.130.xxx.xxx 63189 2014-02-10 14:08:46 93.174.93.51 58575 70.130.xxx.xxx 63189 2014-02-10 16:07:44 93.174.93.51 56148 70.130.xxx.xxx 63809 2014-02-10 16:09:16 93.174.93.51 56148 70.130.xxx.xxx 63809 2014-02-10 17:05:52 93.174.93.51 41384 70.130.xxx.xxx 36145 2014-02-10 17:07:30 93.174.93.51 41384 70.130.xxx.xxx 36145 2014-02-10 20:18:38 93.174.93.51 49889 70.130.xxx.xxx 80 2014-02-10 20:20:18 93.174.93.51 49889 70.130.xxx.xxx 80 2014-02-11 06:16:47 93.174.93.51 48273 70.130.xxx.xxx 559 2014-02-11 06:18:47 93.174.93.51 48273 70.130.xxx.xxx 559 2014-02-11 09:15:14 93.174.93.51 51417 70.130.xxx.xxx 35125 2014-02-11 09:16:31 93.174.93.51 51417 70.130.xxx.xxx 35125 2014-02-11 12:32:17 93.174.93.51 44649 70.130.xxx.xxx 443 2014-02-11 12:33:20 93.174.93.51 44649 70.130.xxx.xxx 443 2014-02-11 16:58:27 93.174.93.51 55190 70.130.xxx.xxx 8081 2014-02-11 17:00:26 93.174.93.51 55190 70.130.xxx.xxx 8081 2014-02-12 11:27:00 93.174.95.63 37721 70.130.xxx.xxx 5631 2014-02-12 11:28:01 93.174.95.63 37721 70.130.xxx.xxx 5631 2014-02-12 18:33:46 93.174.93.51 52259 70.130.xxx.xxx 4444 2014-02-12 19:38:06 93.174.93.51 42284 70.130.xxx.xxx 808 2014-02-12 19:40:03 93.174.93.51 42284 70.130.xxx.xxx 808 2014-02-12 21:28:26 93.174.93.51 59456 70.130.xxx.xxx 48358 2014-02-12 21:29:30 93.174.93.51 59456 70.130.xxx.xxx 48358 2014-02-13 01:16:45 93.174.93.51 35719 70.130.xxx.xxx 63000 2014-02-13 01:18:27 93.174.93.51 35719 70.130.xxx.xxx 63000 2014-02-13 02:07:02 93.174.93.51 45717 70.130.xxx.xxx 1560 2014-02-13 02:08:39 93.174.93.51 45717 70.130.xxx.xxx 1560 2014-02-13 05:14:15 93.174.93.51 48645 70.130.xxx.xxx 13067 2014-02-13 05:15:26 93.174.93.51 48645 70.130.xxx.xxx 13067 2014-02-13 08:23:15 93.174.93.51 44255 70.130.xxx.xxx 1080 2014-02-13 08:25:13 93.174.93.51 44255 70.130.xxx.xxx 1080 2014-02-13 10:01:46 93.174.93.51 43860 70.130.xxx.xxx 3128 2014-02-13 10:03:37 93.174.93.51 43860 70.130.xxx.xxx 3128 2014-02-13 12:37:07 93.174.93.51 56638 70.130.xxx.xxx 34253 2014-02-13 12:38:15 93.174.93.51 56638 70.130.xxx.xxx 34253 2014-02-13 13:54:13 93.174.93.51 41820 70.130.xxx.xxx 63809 2014-02-13 13:55:35 93.174.93.51 41820 70.130.xxx.xxx 63809 2014-02-13 16:40:31 93.174.93.51 44107 70.130.xxx.xxx 16535 2014-02-13 16:42:16 93.174.93.51 44107 70.130.xxx.xxx 16535 2014-02-13 19:27:04 93.174.93.51 55118 70.130.xxx.xxx 62617 2014-02-13 19:28:57 93.174.93.51 55118 70.130.xxx.xxx 62617 2014-02-13 20:33:34 93.174.93.51 60946 70.130.xxx.xxx 3128 2014-02-13 20:35:14 93.174.93.51 60946 70.130.xxx.xxx 3128 2014-02-13 23:46:58 93.174.93.51 49789 70.130.xxx.xxx 6588 2014-02-13 23:48:02 93.174.93.51 49789 70.130.xxx.xxx 6588 2014-02-14 02:29:48 93.174.93.51 41356 70.130.xxx.xxx 9723 2014-02-14 02:31:42 93.174.93.51 41356 70.130.xxx.xxx 9723 2014-02-14 03:03:38 93.174.95.63 41070 70.130.xxx.xxx 5631 2014-02-14 03:04:50 93.174.95.63 41070 70.130.xxx.xxx 5631 2014-02-14 03:33:21 93.174.93.51 55309 70.130.xxx.xxx 65506 2014-02-14 03:34:58 93.174.93.51 55309 70.130.xxx.xxx 65506 2014-02-14 07:15:09 93.174.93.51 44869 70.130.xxx.xxx 10098 2014-02-14 07:16:53 93.174.93.51 44869 70.130.xxx.xxx 10098 2014-02-14 07:44:43 93.174.95.63 41515 70.130.xxx.xxx 3389 2014-02-14 07:46:00 93.174.95.63 41515 70.130.xxx.xxx 3389 2014-02-14 09:29:25 93.174.93.51 47339 70.130.xxx.xxx 33705 2014-02-14 09:30:26 93.174.93.51 47339 70.130.xxx.xxx 33705 2014-02-14 12:25:44 93.174.93.51 55918 70.130.xxx.xxx 9000 2014-02-14 12:27:10 93.174.93.51 55918 70.130.xxx.xxx 9000 2014-02-14 13:25:52 93.174.93.51 49258 70.130.xxx.xxx 1027 2014-02-14 13:27:25 93.174.93.51 49258 70.130.xxx.xxx 1027 2014-02-14 13:58:56 93.174.95.63 38054 70.130.xxx.xxx 3389 2014-02-14 14:00:33 93.174.95.63 38054 70.130.xxx.xxx 3389 2014-02-14 18:21:40 93.174.93.51 51805 70.130.xxx.xxx 49277 2014-02-14 18:23:39 93.174.93.51 51805 70.130.xxx.xxx 49277 2014-02-14 22:40:46 93.174.93.51 55371 70.130.xxx.xxx 23 2014-02-14 22:42:43 93.174.93.51 55371 70.130.xxx.xxx 23 2014-02-15 07:52:11 93.174.93.51 57565 70.130.xxx.xxx 51074 2014-02-15 07:53:59 93.174.93.51 57565 70.130.xxx.xxx 51074 2014-02-15 09:40:44 93.174.93.51 52180 70.130.xxx.xxx 13903 2014-02-15 09:42:27 93.174.93.51 52180 70.130.xxx.xxx 13903 2014-02-15 12:37:49 93.174.93.51 58720 70.130.xxx.xxx 9999 2014-02-15 12:39:10 93.174.93.51 58720 70.130.xxx.xxx 9999 2014-02-15 14:34:41 93.174.93.51 52108 70.130.xxx.xxx 63808 2014-02-15 14:36:39 93.174.93.51 52108 70.130.xxx.xxx 63808 2014-02-15 17:26:52 93.174.93.51 60940 70.130.xxx.xxx 34042 2014-02-15 17:28:22 93.174.93.51 60940 70.130.xxx.xxx 34042 2014-02-15 19:33:23 93.174.93.51 37672 70.130.xxx.xxx 1028 2014-02-15 19:34:53 93.174.93.51 37672 70.130.xxx.xxx 1028 2014-02-15 21:27:25 93.174.93.51 41233 70.130.xxx.xxx 50749 2014-02-15 21:29:22 93.174.93.51 41233 70.130.xxx.xxx 50749 2014-02-16 01:14:18 93.174.93.51 34114 70.130.xxx.xxx 26840 2014-02-16 01:16:18 93.174.93.51 34114 70.130.xxx.xxx 26840 2014-02-16 05:29:00 93.174.93.51 34636 70.130.xxx.xxx 8080 2014-02-16 05:30:21 93.174.93.51 34636 70.130.xxx.xxx 8080 2014-02-16 11:57:39 93.174.93.51 35430 70.130.xxx.xxx 808 2014-02-16 11:58:58 93.174.93.51 35430 70.130.xxx.xxx 808 2014-02-16 12:45:39 93.174.93.51 54864 70.130.xxx.xxx 1029 2014-02-16 12:47:09 93.174.93.51 54864 70.130.xxx.xxx 1029 2014-02-16 17:19:43 93.174.93.51 34443 70.130.xxx.xxx 44681 2014-02-16 17:21:18 93.174.93.51 34443 70.130.xxx.xxx 44681 2014-02-16 17:47:49 93.174.93.51 54045 70.130.xxx.xxx 3382 2014-02-16 17:49:24 93.174.93.51 54045 70.130.xxx.xxx 3382 2014-02-16 19:57:33 93.174.93.51 39965 70.130.xxx.xxx 54989 2014-02-16 19:58:57 93.174.93.51 39965 70.130.xxx.xxx 54989 2014-02-16 23:14:07 93.174.93.51 36838 70.130.xxx.xxx 55285 2014-02-16 23:15:46 93.174.93.51 36838 70.130.xxx.xxx 55285 2014-02-17 02:54:14 93.174.93.51 30677 70.130.xxx.xxx 3128 2014-02-17 02:55:40 93.174.93.51 30677 70.130.xxx.xxx 3128 2014-02-17 08:48:36 93.174.93.51 58395 70.130.xxx.xxx 63787 2014-02-17 08:50:08 93.174.93.51 58395 70.130.xxx.xxx 63787 2014-02-17 12:23:50 93.174.93.51 59514 70.130.xxx.xxx 1813 2014-02-17 12:25:01 93.174.93.51 59514 70.130.xxx.xxx 1813 2014-02-17 15:12:14 93.174.93.51 55189 70.130.xxx.xxx 49863 2014-02-17 15:13:43 93.174.93.51 55189 70.130.xxx.xxx 49863 2014-02-17 18:33:08 93.174.93.51 53356 70.130.xxx.xxx 63764 2014-02-17 18:34:33 93.174.93.51 53356 70.130.xxx.xxx 63764 2014-02-17 21:39:10 93.174.93.51 45578 70.130.xxx.xxx 19086 2014-02-17 21:40:19 93.174.93.51 45578 70.130.xxx.xxx 19086 2014-02-17 22:31:42 93.174.95.119 44903 70.130.xxx.xxx 80 2014-02-17 22:33:32 93.174.95.119 44903 70.130.xxx.xxx 80 2014-02-17 23:25:18 93.174.93.51 44727 70.130.xxx.xxx 25958 2014-02-17 23:26:46 93.174.93.51 44727 70.130.xxx.xxx 25958 2014-02-18 01:47:57 93.174.93.51 35081 70.130.xxx.xxx 33759 2014-02-18 01:49:21 93.174.93.51 35081 70.130.xxx.xxx 33759 2014-02-18 07:29:41 93.174.93.51 54655 70.130.xxx.xxx 8080 2014-02-18 07:30:46 93.174.93.51 54655 70.130.xxx.xxx 8080 2014-02-18 10:48:35 93.174.93.51 58036 70.130.xxx.xxx 3802 2014-02-18 11:56:37 93.174.93.51 54307 70.130.xxx.xxx 5894 2014-02-18 11:57:52 93.174.93.51 54307 70.130.xxx.xxx 5894 2014-02-18 13:40:45 93.174.93.51 34893 70.130.xxx.xxx 5490 2014-02-18 13:42:18 93.174.93.51 34893 70.130.xxx.xxx 5490 2014-02-18 16:38:51 93.174.93.51 49672 70.130.xxx.xxx 18009 2014-02-18 16:40:02 93.174.93.51 49672 70.130.xxx.xxx 18009 2014-02-18 18:29:29 93.174.93.51 40879 70.130.xxx.xxx 16502 2014-02-18 21:48:58 93.174.93.51 50787 70.130.xxx.xxx 808 2014-02-18 21:50:19 93.174.93.51 50787 70.130.xxx.xxx 808 2014-02-19 00:19:52 93.174.93.51 30554 70.130.xxx.xxx 8000 2014-02-19 00:20:56 93.174.93.51 30554 70.130.xxx.xxx 8000 2014-02-19 02:52:34 93.174.93.51 59336 70.130.xxx.xxx 17094 2014-02-19 04:59:26 93.174.93.51 53837 70.130.xxx.xxx 3800 2014-02-19 05:01:06 93.174.93.51 53837 70.130.xxx.xxx 3800 2014-02-19 05:53:30 93.174.95.119 46981 70.130.xxx.xxx 110 2014-02-19 05:55:19 93.174.95.119 46981 70.130.xxx.xxx 110 2014-02-19 06:52:09 93.174.95.119 52826 70.130.xxx.xxx 143 2014-02-19 06:53:34 93.174.95.119 52826 70.130.xxx.xxx 143 2014-02-19 06:54:10 93.174.93.51 33188 70.130.xxx.xxx 44716 2014-02-19 06:55:34 93.174.93.51 33188 70.130.xxx.xxx 44716 2014-02-19 08:09:08 93.174.95.119 53893 70.130.xxx.xxx 7443 2014-02-19 08:10:53 93.174.95.119 53893 70.130.xxx.xxx 7443 2014-02-19 08:53:19 93.174.95.119 42345 70.130.xxx.xxx 8023 2014-02-19 08:55:04 93.174.95.119 42345 70.130.xxx.xxx 8023 2014-02-19 09:05:47 93.174.93.51 52147 70.130.xxx.xxx 11886 2014-02-19 09:07:07 93.174.93.51 52147 70.130.xxx.xxx 11886 2014-02-19 09:25:01 93.174.95.119 38319 70.130.xxx.xxx 7777 2014-02-19 09:26:12 93.174.95.119 38319 70.130.xxx.xxx 7777 2014-02-19 09:52:56 93.174.95.119 49755 70.130.xxx.xxx 7778 2014-02-19 09:54:19 93.174.95.119 49755 70.130.xxx.xxx 7778 2014-02-19 11:22:02 93.174.95.119 60872 70.130.xxx.xxx 80 2014-02-19 11:23:41 93.174.95.119 60872 70.130.xxx.xxx 80 2014-02-19 11:56:56 93.174.93.51 48433 70.130.xxx.xxx 3128 2014-02-19 11:58:50 93.174.93.51 48433 70.130.xxx.xxx 3128 2014-02-19 12:26:57 93.174.95.63 54306 70.130.xxx.xxx 3389 2014-02-19 12:28:57 93.174.95.63 54306 70.130.xxx.xxx 3389 2014-02-19 13:58:37 93.174.93.51 31620 70.130.xxx.xxx 10000 2014-02-19 14:00:20 93.174.93.51 31620 70.130.xxx.xxx 10000 2014-02-19 17:57:24 93.174.93.51 33827 70.130.xxx.xxx 34928 2014-02-19 17:59:19 93.174.93.51 33827 70.130.xxx.xxx 34928 2014-02-19 18:31:22 93.174.93.93 7678 70.130.xxx.xxx 53 2014-02-19 18:32:27 93.174.93.93 7678 70.130.xxx.xxx 53 2014-02-19 20:12:32 93.174.93.51 46691 70.130.xxx.xxx 2280 2014-02-19 20:13:52 93.174.93.51 46691 70.130.xxx.xxx 2280 2014-02-19 22:38:01 93.174.93.51 47297 70.130.xxx.xxx 50861 2014-02-19 22:39:29 93.174.93.51 47297 70.130.xxx.xxx 50861 2014-02-20 00:09:49 93.174.93.51 50098 70.130.xxx.xxx 4669 2014-02-20 00:10:51 93.174.93.51 50098 70.130.xxx.xxx 4669 2014-02-20 03:07:02 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-20 03:08:35 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-20 03:29:10 93.174.93.51 53346 70.130.xxx.xxx 9000 2014-02-20 03:30:41 93.174.93.51 53346 70.130.xxx.xxx 9000 2014-02-20 04:33:55 93.174.93.51 41579 70.130.xxx.xxx 1202 2014-02-20 04:34:57 93.174.93.51 41579 70.130.xxx.xxx 1202 2014-02-20 06:38:46 93.174.93.51 35322 70.130.xxx.xxx 23034 2014-02-20 06:40:28 93.174.93.51 35322 70.130.xxx.xxx 23034 2014-02-20 10:49:14 93.174.93.51 57162 70.130.xxx.xxx 10001 2014-02-20 10:50:30 93.174.93.51 57162 70.130.xxx.xxx 10001 2014-02-20 12:08:37 93.174.93.51 48655 70.130.xxx.xxx 8441 2014-02-20 12:09:49 93.174.93.51 48655 70.130.xxx.xxx 8441 2014-02-20 13:39:14 93.174.93.51 38182 70.130.xxx.xxx 35777 2014-02-20 13:41:12 93.174.93.51 38182 70.130.xxx.xxx 35777 2014-02-20 17:32:41 93.174.93.51 34724 70.130.xxx.xxx 8080 2014-02-20 17:34:10 93.174.93.51 34724 70.130.xxx.xxx 8080 2014-02-21 00:51:50 93.174.93.51 30332 70.130.xxx.xxx 17771 2014-02-21 00:52:59 93.174.93.51 30332 70.130.xxx.xxx 17771 2014-02-21 03:20:19 93.174.93.51 54708 70.130.xxx.xxx 58687 2014-02-21 03:21:36 93.174.93.51 54708 70.130.xxx.xxx 58687 2014-02-21 04:37:09 93.174.93.51 31716 70.130.xxx.xxx 35233 2014-02-21 04:38:55 93.174.93.51 31716 70.130.xxx.xxx 35233 2014-02-21 06:53:28 93.174.93.51 41366 70.130.xxx.xxx 53190 2014-02-21 07:59:07 93.174.93.51 47971 70.130.xxx.xxx 31931 2014-02-21 08:00:45 93.174.93.51 47971 70.130.xxx.xxx 31931 2014-02-21 11:19:24 93.174.93.51 30993 70.130.xxx.xxx 808 2014-02-21 11:20:35 93.174.93.51 30993 70.130.xxx.xxx 808 2014-02-21 13:12:06 93.174.93.51 44644 70.130.xxx.xxx 3332 2014-02-21 13:14:03 93.174.93.51 44644 70.130.xxx.xxx 3332 2014-02-21 16:01:37 93.174.93.51 48416 70.130.xxx.xxx 27165 2014-02-21 16:02:45 93.174.93.51 48416 70.130.xxx.xxx 27165 2014-02-21 17:35:29 93.174.93.51 33168 70.130.xxx.xxx 3127 2014-02-21 17:37:08 93.174.93.51 33168 70.130.xxx.xxx 3127 2014-02-21 20:13:47 93.174.93.51 57656 70.130.xxx.xxx 33212 2014-02-21 20:15:47 93.174.93.51 57656 70.130.xxx.xxx 33212 2014-02-21 21:57:02 93.174.93.51 56850 70.130.xxx.xxx 20958 2014-02-21 21:58:13 93.174.93.51 56850 70.130.xxx.xxx 20958 2014-02-22 00:19:31 93.174.93.51 55375 70.130.xxx.xxx 3128 2014-02-22 00:20:48 93.174.93.51 55375 70.130.xxx.xxx 3128 2014-02-22 02:38:18 93.174.95.60 41022 70.130.xxx.xxx 19 2014-02-22 02:39:23 93.174.95.60 41022 70.130.xxx.xxx 19 2014-02-22 02:47:18 93.174.93.51 30345 70.130.xxx.xxx 4471 2014-02-22 02:48:25 93.174.93.51 30345 70.130.xxx.xxx 4471 2014-02-22 04:53:22 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-22 04:54:56 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-22 05:03:18 93.174.93.51 46302 70.130.xxx.xxx 28901 2014-02-22 05:04:59 93.174.93.51 46302 70.130.xxx.xxx 28901 2014-02-22 07:46:22 93.174.95.63 40897 70.130.xxx.xxx 4899 2014-02-22 07:47:39 93.174.95.63 40897 70.130.xxx.xxx 4899 2014-02-22 08:49:31 93.174.93.51 34067 70.130.xxx.xxx 3330 2014-02-22 08:50:55 93.174.93.51 34067 70.130.xxx.xxx 3330 2014-02-22 10:12:00 93.174.93.51 54400 70.130.xxx.xxx 50695 2014-02-22 10:13:15 93.174.93.51 54400 70.130.xxx.xxx 50695 2014-02-22 14:03:17 93.174.93.51 31700 70.130.xxx.xxx 45584 2014-02-22 14:05:13 93.174.93.51 31700 70.130.xxx.xxx 45584 2014-02-22 17:21:23 93.174.93.51 31955 70.130.xxx.xxx 9000 2014-02-22 17:23:02 93.174.93.51 31955 70.130.xxx.xxx 9000 2014-02-22 18:59:34 93.174.93.51 51327 70.130.xxx.xxx 1979 2014-02-22 19:01:26 93.174.93.51 51327 70.130.xxx.xxx 1979 2014-02-23 00:34:49 93.174.93.51 36134 70.130.xxx.xxx 38994 2014-02-23 01:49:27 93.174.93.51 43034 70.130.xxx.xxx 21841 2014-02-23 01:51:08 93.174.93.51 43034 70.130.xxx.xxx 21841 2014-02-23 04:52:53 93.174.93.51 49514 70.130.xxx.xxx 61564 2014-02-23 12:18:11 93.174.93.51 53480 70.130.xxx.xxx 8080 2014-02-23 12:19:44 93.174.93.51 53480 70.130.xxx.xxx 8080 2014-02-23 14:03:10 93.174.93.51 56023 70.130.xxx.xxx 1337 2014-02-23 15:15:38 93.174.95.63 45383 70.130.xxx.xxx 5631 2014-02-23 15:17:28 93.174.95.63 45383 70.130.xxx.xxx 5631 2014-02-23 16:52:55 93.174.93.51 43426 70.130.xxx.xxx 48337 2014-02-23 16:54:52 93.174.93.51 43426 70.130.xxx.xxx 48337 2014-02-23 18:29:18 93.174.93.51 57858 70.130.xxx.xxx 35612 2014-02-23 18:31:16 93.174.93.51 57858 70.130.xxx.xxx 35612 2014-02-23 21:17:14 93.174.93.51 55733 70.130.xxx.xxx 16910 2014-02-23 21:18:58 93.174.93.51 55733 70.130.xxx.xxx 16910 2014-02-24 02:41:18 93.174.93.51 38416 70.130.xxx.xxx 49871 2014-02-24 04:23:57 93.174.93.51 56650 70.130.xxx.xxx 2613 2014-02-24 04:25:44 93.174.93.51 56650 70.130.xxx.xxx 2613 2014-02-24 05:20:14 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-24 05:21:58 93.174.93.93 7671 70.130.xxx.xxx 80 2014-02-24 08:02:47 93.174.93.51 38617 70.130.xxx.xxx 19991 2014-02-24 08:04:38 93.174.93.51 38617 70.130.xxx.xxx 19991 2014-02-24 09:44:16 93.174.93.51 53459 70.130.xxx.xxx 21645 2014-02-24 09:46:03 93.174.93.51 53459 70.130.xxx.xxx 21645 2014-02-24 10:46:24 93.174.93.51 55669 70.130.xxx.xxx 47973 2014-02-24 10:48:19 93.174.93.51 55669 70.130.xxx.xxx 47973 2014-02-24 13:18:43 93.174.93.51 39116 70.130.xxx.xxx 3128 2014-02-24 13:19:56 93.174.93.51 39116 70.130.xxx.xxx 3128 2014-02-24 17:02:34 93.174.93.51 46776 70.130.xxx.xxx 31121 2014-02-24 17:03:52 93.174.93.51 46776 70.130.xxx.xxx 31121 2014-02-24 18:52:42 93.174.93.51 41382 70.130.xxx.xxx 55479 2014-02-24 18:54:19 93.174.93.51 41382 70.130.xxx.xxx 55479 2014-02-24 21:13:34 93.174.93.51 51891 70.130.xxx.xxx 25 2014-02-24 21:14:54 93.174.93.51 51891 70.130.xxx.xxx 25 2014-02-25 02:02:36 93.174.93.51 51118 70.130.xxx.xxx 60556 2014-02-25 02:04:06 93.174.93.51 51118 70.130.xxx.xxx 60556 2014-02-25 04:37:18 93.174.93.51 53351 70.130.xxx.xxx 6005 2014-02-25 04:38:44 93.174.93.51 53351 70.130.xxx.xxx 6005 2014-02-25 06:27:57 93.174.93.51 32129 70.130.xxx.xxx 9000 2014-02-25 06:29:12 93.174.93.51 32129 70.130.xxx.xxx 9000 2014-02-25 08:53:39 93.174.93.51 51808 70.130.xxx.xxx 28882 2014-02-25 08:54:48 93.174.93.51 51808 70.130.xxx.xxx 28882 2014-02-25 12:32:42 93.174.93.51 44811 70.130.xxx.xxx 36727 2014-02-25 14:30:45 93.174.93.51 57345 70.130.xxx.xxx 2425 2014-02-25 14:32:11 93.174.93.51 57345 70.130.xxx.xxx 2425 2014-02-25 15:36:48 93.174.93.51 50327 70.130.xxx.xxx 28555 2014-02-25 15:38:28 93.174.93.51 50327 70.130.xxx.xxx 28555 2014-02-25 17:38:53 93.174.93.51 47588 70.130.xxx.xxx 50083 2014-02-25 17:39:58 93.174.93.51 47588 70.130.xxx.xxx 50083 2014-02-25 18:36:20 93.174.95.82 46300 70.130.xxx.xxx 25565 2014-02-25 18:38:13 93.174.95.82 46300 70.130.xxx.xxx 25565 2014-02-26 01:49:12 93.174.93.51 54322 70.130.xxx.xxx 8080 2014-02-26 01:51:00 93.174.93.51 54322 70.130.xxx.xxx 8080 2014-02-26 04:18:29 93.174.93.51 51767 70.130.xxx.xxx 53311 2014-02-26 04:19:37 93.174.93.51 51767 70.130.xxx.xxx 53311 2014-02-26 05:22:25 93.174.93.51 31700 70.130.xxx.xxx 39136 2014-02-26 05:23:53 93.174.93.51 31700 70.130.xxx.xxx 39136 |
Russ McRee 201 Posts ISC Handler |
| Quote |
Feb 26th 2014 7 years ago |
|
We, too, are seeing other attacks from Ecatel. For example, we just started getting probes of TCP Port 30022 on all of our IPs -- in random order -- from the IP address 93.174.93.51. They look like this:
17:24:30.608516 IP 93.174.93.51.49087 > 66.62.230.XXX.30022: Flags [S], seq 2783702063, win 65535, length 0 Since it appears that Ecatel is the source of many exploits (and probes for vulnerable systems), we've blocked their entire IP range, which includes 93.174.88.0/21. --Brett |
BrettGlass 3 Posts |
| Quote |
Feb 27th 2014 7 years ago |
|
The listed 93.174.93.51 IP address appears to be hosted by Ecatel in the Netherlands, who appear to be known bad actors: http://bot24.blogspot.com/2012/07/anonymous-strikes-again-by-trying-to.html
|
Spam 5 Posts |
| Quote |
Feb 27th 2014 7 years ago |
|
I'm using a trio of Raspberry Pis for NTP. Seems to be working well for me. What OS did you have stability issues with?
|
Chris 6 Posts |
| Quote |
Feb 27th 2014 7 years ago |
|
Quoting our friends at WebSense, "Malicious Web Sites URL: http://93.174.93.51"
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CBob 23 Posts |
| Quote |
Feb 27th 2014 7 years ago |
|
Botnet NTP amplification attacks have continued from February into March, but now with a new twist. The original attacks used 8-byte packets, but we are now receiving some that use 12-byte packets - perhaps attempting to exploit a new variant of the original vulnerability.
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BrettGlass 3 Posts |
| Quote |
Mar 11th 2014 7 years ago |
|
We are still seeing these scans even now.
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BrettGlass 1 Posts |
| Quote |
Jan 11th 2016 5 years ago |
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