detection period: 2026-05-26 00:00-23:59 UTC
total number of suspected botnet IPs: 19527
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18527
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 | AL-3 | 1623 |
| 2 | MSFT | 1450 |
| 3 | GOOGLE-CLOUD | 1050 |
| 4 | PAN-22 | 960 |
| 5 | ASEPL-SG | 611 |
| 6 | VOLCANO-ENGINE | 485 |
| 7 | FR-ONYPHE-20191111 | 448 |
| 8 | CENSY | 378 |
| 9 | cloud | 302 |
| 10 | CMNET | 243 |
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 | 9406 |
| 2 | China | 3529 |
| 3 | Singapore | 1013 |
| 4 | France | 475 |
| 5 | Hong Kong | 372 |
| 6 | Netherlands | 357 |
| 7 | Indonesia | 332 |
| 8 | Germany | 319 |
| 9 | United Kingdom | 287 |
| 10 | South Korea | 280 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 284039 |
| 2 | 22 | 38857 |
| 3 | 2021 | 37951 |
| 4 | 8999 | 37602 |
| 5 | 8001 | 37458 |
| 6 | 8010 | 35949 |
| 7 | 2211 | 35024 |
| 8 | 7022 | 32795 |
| 9 | 8015 | 30048 |
| 10 | 4714 | 29463 |
| Rank | Network | # of suspected botnet IPs |
|---|---|---|
| 1 | AL-3 | 1777 |
| 2 | MSFT | 1438 |
| 3 | GOOGLE-CLOUD | 1050 |
| 4 | PAN-22 | 960 |
| 5 | ASEPL-SG | 618 |
| 6 | INFRAWATCH | 568 |
| 7 | VOLCANO-ENGINE | 495 |
| 8 | FR-ONYPHE-20191111 | 448 |
| 9 | CENSY | 378 |
| 10 | cloud | 306 |
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 | 9045 |
| 2 | China | 3750 |
| 3 | Singapore | 978 |
| 4 | Netherlands | 613 |
| 5 | Germany | 590 |
| 6 | France | 489 |
| 7 | Hong Kong | 357 |
| 8 | Indonesia | 333 |
| 9 | Brazil | 318 |
| 10 | United Kingdom | 284 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 349840 |
| 2 | 2021 | 67295 |
| 3 | 2211 | 48795 |
| 4 | 22021 | 31604 |
| 5 | 4714 | 30318 |
| 6 | 23 | 26905 |
| 7 | 5005 | 26714 |
| 8 | 1122 | 26150 |
| 9 | 1722 | 24936 |
| 10 | 22 | 23273 |
| Rank | Network | # of suspected botnet IPs |
|---|---|---|
| 1 | AL-3 | 1534 |
| 2 | MSFT | 1418 |
| 3 | INFRAWATCH | 1178 |
| 4 | GOOGLE-CLOUD | 1038 |
| 5 | PAN-22 | 963 |
| 6 | ASEPL-SG | 517 |
| 7 | VOLCANO-ENGINE | 465 |
| 8 | FR-ONYPHE-20191111 | 448 |
| 9 | CENSY | 378 |
| 10 | cloud | 281 |
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 | 9561 |
| 2 | China | 3557 |
| 3 | Singapore | 909 |
| 4 | United Kingdom | 859 |
| 5 | Germany | 655 |
| 6 | Netherlands | 592 |
| 7 | France | 473 |
| 8 | Hong Kong | 397 |
| 9 | Brazil | 394 |
| 10 | Indonesia | 351 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 403543 |
| 2 | 5525 | 90877 |
| 3 | 2021 | 69188 |
| 4 | 2211 | 53511 |
| 5 | 8122 | 50314 |
| 6 | 22021 | 49690 |
| 7 | 200 | 48444 |
| 8 | 23 | 42538 |
| 9 | 2026 | 37828 |
| 10 | 400 | 37447 |