detection period: 2021-02-13 00:00-23:59 UTC
total number of suspected botnet IPs: 37850
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 35131
number of spam blocked: 0
recipient count of spam blocked: 0
The top 10 networks (as found in WHOIS), ordered by the number of suspected botnet IPs are:
| Rank | Network | # of suspected botnet IPs |
|---|---|---|
| 1 | TencentCloud | 1937 |
| 2 | HINET-NET | 812 |
| 3 | TENCENT-CN | 793 |
| 4 | NETVIGATOR | 770 |
| 5 | KORNET | 753 |
| 6 | DIGITALOCEAN-192-241-128-0 | 636 |
| 7 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 566 |
| 8 | VE-CSVE-LACNIC | 521 |
| 9 | ALISOFT | 510 |
| 10 | Baidu | 406 |
The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:
| Rank | Country/Region | # of suspected botnet IPs |
|---|---|---|
| 1 | China | 8731 |
| 2 | United States | 4555 |
| 3 | India | 2309 |
| 4 | Russian Federation | 2046 |
| 5 | Brazil | 1661 |
| 6 | Hong Kong | 1659 |
| 7 | Taiwan | 1193 |
| 8 | South Korea | 1175 |
| 9 | Indonesia | 868 |
| 10 | Viet Nam | 828 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 247370 |
| 2 | 1128 | 113510 |
| 3 | 1130 | 108434 |
| 4 | 22 | 83665 |
| 5 | 1122 | 68103 |
| 6 | 226 | 58312 |
| 7 | 23 | 42536 |
| 8 | 66 | 40701 |
| 9 | 123 | 32814 |
| 10 | 1212 | 30140 |
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