detection period: 2021-02-28 00:00-23:59 UTC
total number of suspected botnet IPs: 33850
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 31237
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 | 2057 |
| 2 | TENCENT-CN | 793 |
| 3 | DIGITALOCEAN-192-241-128-0 | 667 |
| 4 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 620 |
| 5 | VNPT-VN | 547 |
| 6 | ALISOFT | 477 |
| 7 | HINET-NET | 456 |
| 8 | VIETTEL-VN | 417 |
| 9 | Baidu | 405 |
| 10 | CHINANET-GD | 396 |
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 | 8780 |
| 2 | United States | 4594 |
| 3 | Russian Federation | 1798 |
| 4 | India | 1655 |
| 5 | Brazil | 1435 |
| 6 | Viet Nam | 1401 |
| 7 | Indonesia | 938 |
| 8 | France | 714 |
| 9 | European Union | 645 |
| 10 | Taiwan | 592 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 330956 |
| 2 | 11 | 78981 |
| 3 | 1433 | 74441 |
| 4 | 22 | 70503 |
| 5 | 10 | 58228 |
| 6 | 23 | 29894 |
| 7 | 5901 | 16398 |
| 8 | 5900 | 16218 |
| 9 | 66 | 13396 |
| 10 | 20 | 11212 |
20210301 Botnet Detection Live Streaming (166 zombies detected)
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