detection period: 2021-04-04 00:00-23:59 UTC
total number of suspected botnet IPs: 34962
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 32138
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 | 2147 |
| 2 | TENCENT-CN | 871 |
| 3 | ALISOFT | 757 |
| 4 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 678 |
| 5 | HINET-NET | 517 |
| 6 | VIETTEL-VN | 511 |
| 7 | VNPT-VN | 505 |
| 8 | Baidu | 400 |
| 9 | DIGITALOCEAN-192-241-128-0 | 394 |
| 10 | CMNET | 390 |
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 | 9396 |
| 2 | United States | 4617 |
| 3 | Russian Federation | 1977 |
| 4 | India | 1818 |
| 5 | Viet Nam | 1550 |
| 6 | Brazil | 1504 |
| 7 | Indonesia | 825 |
| 8 | European Union | 700 |
| 9 | Taiwan | 685 |
| 10 | South Korea | 630 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 445 | 353724 |
| 2 | 1221 | 95158 |
| 3 | 23 | 94825 |
| 4 | 2000 | 92842 |
| 5 | 201 | 75461 |
| 6 | 33 | 67567 |
| 7 | 22 | 59604 |
| 8 | 2005 | 44855 |
| 9 | 3381 | 36675 |
| 10 | 1433 | 30119 |