detection period: 2021-02-27 00:00-23:59 UTC
total number of suspected botnet IPs: 35992
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 33143
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 | 2094 |
| 2 | TENCENT-CN | 811 |
| 3 | VNPT-VN | 706 |
| 4 | DIGITALOCEAN-192-241-128-0 | 671 |
| 5 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 634 |
| 6 | VIETTEL-VN | 505 |
| 7 | HINET-NET | 500 |
| 8 | ALISOFT | 484 |
| 9 | Baidu | 424 |
| 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 | 9199 |
| 2 | United States | 4312 |
| 3 | India | 2331 |
| 4 | Russian Federation | 1855 |
| 5 | Viet Nam | 1690 |
| 6 | Brazil | 1593 |
| 7 | Indonesia | 930 |
| 8 | France | 751 |
| 9 | Taiwan | 663 |
| 10 | European Union | 662 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 259115 |
| 2 | 4 | 77498 |
| 3 | 8 | 77361 |
| 4 | 22 | 69777 |
| 5 | 23 | 31948 |
| 6 | 1433 | 31409 |
| 7 | 1720 | 25654 |
| 8 | 1122 | 20326 |
| 9 | 66 | 19676 |
| 10 | 224 | 14459 |