detection period: 2025-12-21 00:00-23:59 UTC
total number of suspected botnet IPs: 21210
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19991
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 | 1392 |
| 2 | AL-3 | 1014 |
| 3 | GOOGLE-CLOUD | 1013 |
| 4 | PAN-22 | 949 |
| 5 | BYTEPLUS-SG | 881 |
| 6 | ASEPL-SG | 606 |
| 7 | VOLCANO-ENGINE | 526 |
| 8 | CMNET | 519 |
| 9 | ALISOFT | 439 |
| 10 | CENSY | 375 |
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 | 8090 |
| 2 | China | 4909 |
| 3 | Singapore | 1683 |
| 4 | Hong Kong | 459 |
| 5 | United Kingdom | 360 |
| 6 | South Korea | 349 |
| 7 | India | 335 |
| 8 | Germany | 319 |
| 9 | Netherlands | 318 |
| 10 | Russian Federation | 306 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 373323 |
| 2 | 2227 | 99703 |
| 3 | 4422 | 72520 |
| 4 | 22 | 59139 |
| 5 | 3302 | 58424 |
| 6 | 522 | 56193 |
| 7 | 3232 | 54233 |
| 8 | 1080 | 53935 |
| 9 | 2212 | 51562 |
| 10 | 2201 | 43564 |
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