detection period: 2021-05-05 00:00-23:59 UTC
total number of suspected botnet IPs: 30757
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 28093
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 | 2120 |
| 2 | TENCENT-CN | 723 |
| 3 | DIGITALOCEAN-192-241-128-0 | 659 |
| 4 | NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | 623 |
| 5 | ALISOFT | 618 |
| 6 | VNPT-VN | 587 |
| 7 | VIETTEL-VN | 478 |
| 8 | HINET-NET | 446 |
| 9 | Baidu | 390 |
| 10 | CMNET | 309 |
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 | 8096 |
| 2 | United States | 4401 |
| 3 | India | 1825 |
| 4 | Viet Nam | 1578 |
| 5 | Russian Federation | 1524 |
| 6 | Brazil | 1345 |
| 7 | Indonesia | 1033 |
| 8 | Thailand | 674 |
| 9 | European Union | 647 |
| 10 | Taiwan | 585 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 1367 | 383948 |
| 2 | 1466 | 349321 |
| 3 | 445 | 331912 |
| 4 | 1041 | 321641 |
| 5 | 1266 | 298957 |
| 6 | 1066 | 261216 |
| 7 | 1393 | 256431 |
| 8 | 1193 | 227185 |
| 9 | 1167 | 215442 |
| 10 | 1038 | 193716 |