detection period: 2025-09-16 00:00-23:59 UTC
total number of suspected botnet IPs: 21330
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20098
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 | 1506 |
| 2 | AL-3 | 1342 |
| 3 | GOOGLE-CLOUD | 1059 |
| 4 | PAN-22 | 933 |
| 5 | ASEPL-SG | 887 |
| 6 | CMNET | 632 |
| 7 | ALISOFT | 556 |
| 8 | VOLCANO-ENGINE | 487 |
| 9 | UCLOUD-HK | 414 |
| 10 | CENSY | 394 |
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 | 7844 |
| 2 | China | 4936 |
| 3 | Singapore | 1227 |
| 4 | Hong Kong | 611 |
| 5 | Indonesia | 564 |
| 6 | South Korea | 414 |
| 7 | United Kingdom | 359 |
| 8 | European Union | 358 |
| 9 | Russian Federation | 346 |
| 10 | India | 317 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 4455 | 114682 |
| 2 | 9422 | 100435 |
| 3 | 8888 | 72368 |
| 4 | 221 | 59199 |
| 5 | 5900 | 58964 |
| 6 | 6007 | 28565 |
| 7 | 6020 | 28419 |
| 8 | 6006 | 28219 |
| 9 | 6060 | 27037 |
| 10 | 5522 | 25914 |
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