detection period: 2021-01-17 00:00-23:59 UTC
total number of suspected botnet IPs: 35320
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 32857
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 | 1857 |
| 2 | TENCENT-CN | 794 |
| 3 | DIGITALOCEAN-192-241-128-0 | 681 |
| 4 | VNPT-VN | 604 |
| 5 | HINET-NET | 527 |
| 6 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 514 |
| 7 | VIETTEL-VN | 503 |
| 8 | ALISOFT | 501 |
| 9 | CHINANET-JS | 465 |
| 10 | VE-CSVE-LACNIC | 430 |
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 | 8809 |
| 2 | United States | 5684 |
| 3 | Russian Federation | 1977 |
| 4 | Viet Nam | 1606 |
| 5 | India | 1513 |
| 6 | Brazil | 1455 |
| 7 | Indonesia | 838 |
| 8 | France | 811 |
| 9 | Taiwan | 738 |
| 10 | Hong Kong | 566 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 190388 |
| 2 | 2337 | 175837 |
| 3 | 2555 | 126302 |
| 4 | 22 | 64325 |
| 5 | 21 | 49921 |
| 6 | 1433 | 34752 |
| 7 | 23 | 32277 |
| 8 | 3022 | 30715 |
| 9 | 1122 | 23328 |
| 10 | 3389 | 21830 |
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