detection period: 2025-09-13 00:00-23:59 UTC
total number of suspected botnet IPs: 20322
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19180
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 | 1439 |
| 2 | AL-3 | 1341 |
| 3 | GOOGLE-CLOUD | 1031 |
| 4 | PAN-22 | 933 |
| 5 | ASEPL-SG | 872 |
| 6 | CMNET | 556 |
| 7 | ALISOFT | 521 |
| 8 | VOLCANO-ENGINE | 483 |
| 9 | UCLOUD-HK | 433 |
| 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 | 7623 |
| 2 | China | 4573 |
| 3 | Singapore | 1250 |
| 4 | Hong Kong | 621 |
| 5 | South Korea | 480 |
| 6 | Indonesia | 413 |
| 7 | Russian Federation | 342 |
| 8 | United Kingdom | 331 |
| 9 | Viet Nam | 300 |
| 10 | India | 295 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 1122 | 98927 |
| 2 | 220 | 90758 |
| 3 | 9422 | 85167 |
| 4 | 5900 | 73215 |
| 5 | 5901 | 47822 |
| 6 | 3333 | 35533 |
| 7 | 5902 | 34288 |
| 8 | 20220 | 20451 |
| 9 | 222 | 19040 |
| 10 | 23 | 18853 |
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