detection period: 2026-05-21 00:00-23:59 UTC
total number of suspected botnet IPs: 22032
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20728
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 | 1709 |
| 2 | MSFT | 1430 |
| 3 | GOOGLE-CLOUD | 1054 |
| 4 | INFRAWATCH | 1030 |
| 5 | PAN-22 | 960 |
| 6 | ASEPL-SG | 594 |
| 7 | VOLCANO-ENGINE | 460 |
| 8 | FR-ONYPHE-20191111 | 448 |
| 9 | CENSY | 381 |
| 10 | cloud | 325 |
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 | 9798 |
| 2 | China | 3577 |
| 3 | Singapore | 1008 |
| 4 | United Kingdom | 757 |
| 5 | Netherlands | 625 |
| 6 | Germany | 557 |
| 7 | France | 519 |
| 8 | Brazil | 414 |
| 9 | Indonesia | 396 |
| 10 | Hong Kong | 379 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 258342 |
| 2 | 2021 | 61526 |
| 3 | 1722 | 46487 |
| 4 | 23 | 41389 |
| 5 | 1122 | 40310 |
| 6 | 4714 | 29708 |
| 7 | 7822 | 27701 |
| 8 | 5902 | 26355 |
| 9 | 5005 | 26343 |
| 10 | 4717 | 25845 |
| Rank | Network | # of suspected botnet IPs |
|---|---|---|
| 1 | AL-3 | 1595 |
| 2 | MSFT | 1443 |
| 3 | GOOGLE-CLOUD | 1056 |
| 4 | PAN-22 | 962 |
| 5 | INFRAWATCH | 859 |
| 6 | ACEVILLEPTELTD-SG | 728 |
| 7 | ASEPL-SG | 569 |
| 8 | FR-ONYPHE-20191111 | 448 |
| 9 | VOLCANO-ENGINE | 424 |
| 10 | CENSY | 372 |
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 | 8764 |
| 2 | China | 3720 |
| 3 | Singapore | 1380 |
| 4 | United Kingdom | 842 |
| 5 | Netherlands | 606 |
| 6 | France | 458 |
| 7 | Hong Kong | 358 |
| 8 | Indonesia | 284 |
| 9 | Germany | 282 |
| 10 | South Korea | 273 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 296862 |
| 2 | 2261 | 66170 |
| 3 | 1722 | 47385 |
| 4 | 22020 | 34436 |
| 5 | 2332 | 33821 |
| 6 | 1122 | 30719 |
| 7 | 4714 | 30085 |
| 8 | 822 | 27570 |
| 9 | 4717 | 26741 |
| 10 | 5902 | 25766 |
| Rank | Network | # of suspected botnet IPs |
|---|---|---|
| 1 | AL-3 | 1709 |
| 2 | MSFT | 1435 |
| 3 | INFRAWATCH | 1076 |
| 4 | GOOGLE-CLOUD | 1051 |
| 5 | PAN-22 | 961 |
| 6 | ACEVILLEPTELTD-SG | 822 |
| 7 | ASEPL-SG | 583 |
| 8 | FR-ONYPHE-20191111 | 448 |
| 9 | VOLCANO-ENGINE | 426 |
| 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 | 9887 |
| 2 | China | 4735 |
| 3 | Singapore | 1473 |
| 4 | United Kingdom | 973 |
| 5 | Germany | 591 |
| 6 | Netherlands | 567 |
| 7 | France | 485 |
| 8 | Hong Kong | 356 |
| 9 | Indonesia | 283 |
| 10 | India | 264 |
| Rank | TCP port number | # of connection attempts received |
|---|---|---|
| 1 | 5900 | 182235 |
| 2 | 2261 | 85221 |
| 3 | 2332 | 80879 |
| 4 | 1722 | 47916 |
| 5 | 22020 | 33974 |
| 6 | 23 | 30682 |
| 7 | 4714 | 30468 |
| 8 | 1122 | 27464 |
| 9 | 4717 | 26648 |
| 10 | 5902 | 25273 |