detection period: 2025-09-20 00:00-23:59 UTC
total number of suspected botnet IPs: 19417
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18285
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 | MSFT | 1512 |
| 2 | AL-3 | 1307 |
| 3 | GOOGLE-CLOUD | 1056 |
| 4 | PAN-22 | 951 |
| 5 | ASEPL-SG | 866 |
| 6 | CMNET | 638 |
| 7 | ALISOFT | 502 |
| 8 | VOLCANO-ENGINE | 482 |
| 9 | CENSY | 389 |
| 10 | UCLOUD-HK | 374 |
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 | United States | 7400 |
| 2 | China | 4676 |
| 3 | Singapore | 1047 |
| 4 | Hong Kong | 573 |
| 5 | South Korea | 420 |
| 6 | European Union | 366 |
| 7 | Indonesia | 349 |
| 8 | Russian Federation | 302 |
| 9 | United Kingdom | 294 |
| 10 | Viet Nam | 255 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 132647 |
| 2 | 5022 | 61646 |
| 3 | 5902 | 47637 |
| 4 | 5903 | 32423 |
| 5 | 5522 | 30291 |
| 6 | 6006 | 28214 |
| 7 | 6007 | 26432 |
| 8 | 6020 | 25736 |
| 9 | 6060 | 25370 |
| 10 | 3333 | 24319 |
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