detection period: 2025-09-17 00:00-23:59 UTC
total number of suspected botnet IPs: 20621
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19373
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 | 1534 |
| 2 | AL-3 | 1334 |
| 3 | GOOGLE-CLOUD | 1071 |
| 4 | PAN-22 | 930 |
| 5 | ASEPL-SG | 876 |
| 6 | CMNET | 628 |
| 7 | ALISOFT | 553 |
| 8 | VOLCANO-ENGINE | 486 |
| 9 | UCLOUD-HK | 396 |
| 10 | CENSY | 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 | United States | 7451 |
| 2 | China | 4805 |
| 3 | Singapore | 1178 |
| 4 | Indonesia | 602 |
| 5 | Hong Kong | 569 |
| 6 | South Korea | 421 |
| 7 | Russian Federation | 385 |
| 8 | European Union | 379 |
| 9 | Germany | 334 |
| 10 | United Kingdom | 327 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 4455 | 113175 |
| 2 | 9422 | 84860 |
| 3 | 5900 | 63980 |
| 4 | 5522 | 57525 |
| 5 | 3333 | 56817 |
| 6 | 4444 | 41060 |
| 7 | 8888 | 39621 |
| 8 | 6007 | 37515 |
| 9 | 6622 | 37265 |
| 10 | 3334 | 33969 |
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