Nice report,
If you would have to pick up just one vector out of this “multi-vector” attack, which one seems to be the one that had the bigger effect on your network or service? Was it degraded or total service interruption? Jean From: NANOG <nanog-bounces+jean=ddostest...@nanog.org> On Behalf Of Mike Hammett Sent: February 8, 2021 8:43 AM To: NANOG list <nanog@nanog.org> Subject: Re: Retalitory DDoS Mike, I've attached the full information we got from our DDOS protection system below. We had a large number of ping loss and data loss tickets begin opening up for devices sharing the cabinet chi18-313. The high traffic and interference was determined to be caused by incoming traffic to the ip address [Not hard to find, but redacted anyway]. Our network engineers will be back in after 9am until 5pm CST. They have greater access to the network and may be able to give you more details. Location : Chicago Event Time : 2021-02-08 04:17:38 CST (-0600) Destination IP: [Not hard to find, but redacted anyway] Traffic : 2520 Mbps 382880 pps Fragmentation : 11% Top Transport Protocol: . 99% Protocol # 17 (UDP) TCP Flag: SYN: 100% ACK: 0% RST: 0% FIN: 0% Top Source Port: . 61% Port # 3702 . 38% Port # 0 Top Destination Port: . 38% Port # 0 . 14% Port # 45934 . 9% Port # 23680 . 8% Port # 35023 . 7% Port # 25966 Top Source IP: . 0% 112.164.127.17 Number of unique IP: 7110 Total Bytes : 1259961437 <callto:1259961437> Total Packets : 1531559 Duration : 4s Report Run Time : 151.3ms The 30 day null route count is: 0 Number of hours to null route : 1 Location : Chicago Event Time : 2021-02-08 04:02:38 CST (-0600) Destination IP: [Not hard to find, but redacted anyway] Traffic : 1817 Mbps 275483 pps Fragmentation : 13% Top Transport Protocol: . 99% Protocol # 17 (UDP) TCP Flag: SYN: 99% ACK: 0% RST: 0% FIN: 0% Top Source Port: . 56% Port # 3702 . 43% Port # 0 Top Destination Port: . 43% Port # 0 . 19% Port # 25966 . 19% Port # 35023 . 17% Port # 23680 Top Source IP: . 0% 90.49.167.239 Number of unique IP: 3577 Total Bytes : 953894831 Total Packets : 1157017 Duration : 4.199s Report Run Time : 306.8ms The 30 day null route count is: 0 Number of hours to null route : 1 Liam Doring Systems Administrator ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> _____ From: "Mike Hammett" <na...@ics-il.net> To: "NANOG list" <nanog@nanog.org> Sent: Monday, February 8, 2021 5:46:26 AM Subject: Retalitory DDoS Is there a club for people that have been DDoSed? If so, count me in. This one was directed at me (as opposed to one of my customers) because I got an e-mail explaining why I was getting DDoSed. Is that aspect common? There were also some racial and sexual accusations that were made that clearly aren't true and just speak to the intelligence of people like this. Is it safe to assume that they completely anonymized the email they sent to me? Is there anyone I should be reporting this to? I thought my site was running in Cloudflare, but my individual server was still attacked, so I gotta figure out where I screwed that up. https://www.dropbox.com/s/rrrx90jvy09h26s/ICS%20DDoS.png?dl=0 ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg>
