Abuse Message [AbuseID:7E7382:20]: Spam

 This is an automated message from Columbia University IT Security. You are
 receiving it because you are listed as the abuse contact in WHOIS for the machine
 referred to below. This machine either attempted to gain unauthorized
 access to one or more machines, or was scanning the network at Columbia
 University.
 
 It is possible that this alert is the result of a reflection attack against your network with a spoofed origin matching Columbia University’s network.
 
 Details are provided below. Please take all necessary
 steps to mitigate such attacks, or ignore this notice if this traffic is spoofed.
 
 If you have received this message in error, or if this incident
 reported is inappropriate, please contact security@columbia.edu
 so that we can update our procedures. Please include the entire
 body of this message.
 
 Thank You.
 
 Columbia University IT Security
 security@columbia.edu
 
 Name: static.57.77.181.135.clients.your-server.de
 Address: 135.181.77.57
 
 Incident type: 3389/tcp
 First attempt: 19-dec-2020 19:50:00 GMT-0500
 Last attempt: 19-dec-2020 19:50:00 GMT-0500
 Total attempts: 457
 
 19-Dec-2020 19:49:58 GMT-0500 135.181.77.57:47699 -> 128.59.81.205:3389 6 1853
 19-Dec-2020 19:49:53 GMT-0500 135.181.77.57:42149 -> 128.59.81.205:3389 6 1878
 19-Dec-2020 19:49:56 GMT-0500 135.181.77.57:45785 -> 128.59.81.205:3389 6 1924
 19-Dec-2020 19:49:51 GMT-0500 135.181.77.57:40308 -> 128.59.81.205:3389 6 1899
 19-Dec-2020 19:49:55 GMT-0500 135.181.77.57:43977 -> 128.59.81.205:3389 6 1847
 19-Dec-2020 19:49:50 GMT-0500 135.181.77.57:38651 -> 128.59.180.83:3389 6 1518
 19-Dec-2020 19:49:57 GMT-0500 135.181.77.57:45146 -> 128.59.150.198:3389 6 46
 19-Dec-2020 19:49:54 GMT-0500 135.181.77.57:43284 -> 128.59.104.175:3389 6 1552
 19-Dec-2020 19:49:53 GMT-0500 135.181.77.57:42149 -> 128.59.81.205:3389 6 1498
 19-Dec-2020 19:49:57 GMT-0500 135.181.77.57:46950 -> 128.59.150.198:3389 6 1651
 19-Dec-2020 19:50:02 GMT-0500 135.181.77.57:47825 -> 128.59.178.95:3389 6 276
 19-Dec-2020 19:49:55 GMT-0500 135.181.77.57:43977 -> 128.59.81.205:3389 6 1795
 19-Dec-2020 19:49:58 GMT-0500 135.181.77.57:47699 -> 128.59.81.205:3389 6 1715
 19-Dec-2020 19:49:58 GMT-0500 135.181.77.57:46952 -> 128.59.104.175:3389 6 1157
 19-Dec-2020 19:50:01 GMT-0500 135.181.77.57:51403 -> 128.59.81.205:3389 6 1853
 19-Dec-2020 19:50:05 GMT-0500 135.181.77.57:55151 -> 128.59.81.205:3389 6 1899
 19-Dec-2020 19:50:00 GMT-0500 135.181.77.57:49512 -> 128.59.81.205:3389 6 1874
 19-Dec-2020 19:50:00 GMT-0500 135.181.77.57:47699 -> 128.59.81.205:3389 6 46
 19-Dec-2020 19:50:03 GMT-0500 135.181.77.57:53349 -> 128.59.81.205:3389 6 1916
 19-Dec-2020 19:50:07 GMT-0500 135.181.77.57:56997 -> 128.59.81.205:3389 6 1086
 19-Dec-2020 19:50:10 GMT-0500 135.181.77.57:1382 -> 128.59.104.175:3389 6 1203
 19-Dec-2020 19:50:07 GMT-0500 135.181.77.57:58049 -> 128.59.150.198:3389 6 1882
 19-Dec-2020 19:50:08 GMT-0500 135.181.77.57:58469 -> 128.59.104.175:3389 6 2755
 19-Dec-2020 19:50:04 GMT-0500 135.181.77.57:54302 -> 128.59.150.198:3389 6 1651
 19-Dec-2020 19:50:02 GMT-0500 135.181.77.57:51736 -> 128.59.178.95:3389 6 1508
 19-Dec-2020 19:50:04 GMT-0500 135.181.77.57:52724 -> 128.59.104.175:3389 6 328
 19-Dec-2020 19:50:04 GMT-0500 135.181.77.57:54781 -> 128.59.104.175:3389 6 1948
 19-Dec-2020 19:50:08 GMT-0500 135.181.77.57:58936 -> 128.59.81.205:3389 6 1849
 19-Dec-2020 19:50:10 GMT-0500 135.181.77.57:1846 -> 128.59.81.205:3389 6 1918
 19-Dec-2020 19:50:13 GMT-0500 135.181.77.57:5577 -> 128.59.81.205:3389 6 1866
 19-Dec-2020 19:50:06 GMT-0500 135.181.77.57:56997 -> 128.59.81.205:3389 6 1870
 19-Dec-2020 19:50:11 GMT-0500 135.181.77.57:3743 -> 128.59.81.205:3389 6 1895
 19-Dec-2020 19:50:10 GMT-0500 135.181.77.57:1846 -> 128.59.81.205:3389 6 1538
 19-Dec-2020 19:50:13 GMT-0500 135.181.77.57:5577 -> 128.59.81.205:3389 6 1082
 19-Dec-2020 19:50:10 GMT-0500 135.181.77.57:1963 -> 128.59.178.95:3389 6 1737
 19-Dec-2020 19:50:12 GMT-0500 135.181.77.57:3306 -> 128.59.104.175:3389 6 1157
 19-Dec-2020 19:50:12 GMT-0500 135.181.77.57:3743 -> 128.59.81.205:3389 6 986
 19-Dec-2020 19:50:14 GMT-0500 135.181.77.57:6504 -> 128.59.150.198:3389 6 1234
 19-Dec-2020 19:50:18 GMT-0500 135.181.77.57:9324 -> 128.59.81.205:3389 6 276
 19-Dec-2020 19:50:14 GMT-0500 135.181.77.57:5210 -> 128.59.104.175:3389 6 46
 19-Dec-2020 19:50:12 GMT-0500 135.181.77.57:4600 -> 128.59.150.198:3389 6 1852
 19-Dec-2020 19:50:16 GMT-0500 135.181.77.57:9324 -> 128.59.81.205:3389 6 1920
 19-Dec-2020 19:50:20 GMT-0500 135.181.77.57:12967 -> 128.59.81.205:3389 6 1872
 19-Dec-2020 19:50:21 GMT-0500 135.181.77.57:14889 -> 128.59.81.205:3389 6 1893
 19-Dec-2020 19:50:18 GMT-0500 135.181.77.57:11156 -> 128.59.81.205:3389 6 1853
 19-Dec-2020 19:50:15 GMT-0500 135.181.77.57:7450 -> 128.59.81.205:3389 6 1899
 19-Dec-2020 19:50:19 GMT-0500 135.181.77.57:11914 -> 128.59.150.198:3389 6 1800
 19-Dec-2020 19:50:25 GMT-0500 135.181.77.57:17282 -> 128.59.150.198:3389 6 374
 19-Dec-2020 19:50:25 GMT-0500 135.181.77.57:18615 -> 128.59.81.205:3389 6 1104
 Attempts continue…

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