detection period: 2025-09-21 00:00-23:59 UTC
total number of suspected botnet IPs: 20055
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18872
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 | 1509 |
| 2 | AL-3 | 1285 |
| 3 | GOOGLE-CLOUD | 1026 |
| 4 | PAN-22 | 951 |
| 5 | ASEPL-SG | 868 |
| 6 | CMNET | 633 |
| 7 | ALISOFT | 499 |
| 8 | VOLCANO-ENGINE | 485 |
| 9 | CENSY | 394 |
| 10 | UCLOUD-HK | 370 |
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 | 7594 |
| 2 | China | 4799 |
| 3 | Singapore | 1076 |
| 4 | Hong Kong | 549 |
| 5 | South Korea | 393 |
| 6 | European Union | 390 |
| 7 | Indonesia | 363 |
| 8 | United Kingdom | 354 |
| 9 | Russian Federation | 288 |
| 10 | Netherlands | 265 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 182729 |
| 2 | 5022 | 51646 |
| 3 | 5902 | 49873 |
| 4 | 5903 | 30991 |
| 5 | 6006 | 28230 |
| 6 | 3022 | 28057 |
| 7 | 6007 | 25727 |
| 8 | 6020 | 25718 |
| 9 | 6060 | 25253 |
| 10 | 6011 | 23346 |
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