DDoS Attack against intelx.io

Published on October 3, 2019 by

On September 19, 2019, intelx.io was under DDoS attack. 62 unique IPv4s issued 1.259.671 HTTP requests in 20 minutes.

The attack was not successful, the service continued to perform normally.

Source IPs

As per our Terms of Service, we reserve the right to share information about attacks with the public. This is the list of IPv4s that participated in the attack:

104.238.99.130
108.61.175.7
109.201.133.100
109.254.38.76
118.31.229.46
140.82.59.139
148.72.22.255
157.230.117.97
163.53.209.8
166.62.116.91
166.62.43.235
166.62.81.144
166.62.84.121
173.245.239.223
176.36.115.16
178.197.248.213
184.185.2.146
190.214.20.10
192.169.152.231
192.169.188.100
192.169.216.124
192.241.187.83
193.112.253.73
198.12.154.22
198.199.116.206
199.249.230.106
199.249.230.73
201.231.214.242
213.154.21.183
216.144.228.130
216.144.230.233
23.129.64.150
23.129.64.209
35.230.63.36
35.233.133.18
35.245.105.65
35.245.111.217
35.245.152.246
35.245.160.51
35.246.212.153
45.63.41.113
47.154.22.220
47.254.178.255
5.164.206.2
50.63.26.13
51.144.228.148
54.38.55.72
64.118.84.6
66.110.216.105
69.247.158.68
72.11.148.222
80.240.31.214
80.76.110.26
83.149.37.56
89.149.69.178
95.110.230.142
96.44.133.110
96.44.183.149
96.69.4.54
98.143.145.29
98.143.145.30
98.174.90.36

The attacker rotated the User Agent:

109.201.133.100 - - [19/Sep/2019:16:23:57 +0000] "GET /?9179 HTTP/1.1" 302 207 "https://www.google.com/search?q=intelx.io/" "Mozilla/5.0 (Android; Linux armv7l; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 Fennec/2.0.1"
109.201.133.100 - - [19/Sep/2019:16:23:57 +0000] "GET /?15578 HTTP/1.1" 302 208 "https://www.google.com/search?q=intelx.io/" "Mozilla/5.0 (iPhone; CPU iPhone OS 11_2_2 like Mac https://m.baidu.com/mip/c/s/zhangzifan.com/wechat-user-agent.htmlOS X) AppleWebKit/604.4.7 (KHTML, like Gecko) Mobile/15C202 MicroMessenger/6.6.1 NetType/4G Language/zh_CN"

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