(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-30 00:00-23:59 UTC
total number of suspected botnet IPs: 18014
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17075
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 | 1568 |
| 2 | MSFT | 1333 |
| 3 | GOOGLE-CLOUD | 1000 |
| 4 | ASEPL-SG | 962 |
| 5 | PAN-22 | 950 |
| 6 | VOLCANO-ENGINE | 404 |
| 7 | FR-ONYPHE-20191111 | 400 |
| 8 | CENSY | 379 |
| 9 | cloud | 328 |
| 10 | ALISOFT | 303 |
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 | 8259 |
| 2 | China | 3612 |
| 3 | Singapore | 1315 |
| 4 | France | 466 |
| 5 | Hong Kong | 363 |
| 6 | Indonesia | 336 |
| 7 | Netherlands | 278 |
| 8 | South Korea | 243 |
| 9 | United Kingdom | 232 |
| 10 | India | 229 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 320107 |
| 2 | 2254 | 101987 |
| 3 | 2205 | 98719 |
| 4 | 5025 | 91756 |
| 5 | 7722 | 74956 |
| 6 | 6666 | 46098 |
| 7 | 9901 | 45918 |
| 8 | 5522 | 41546 |
| 9 | 7777 | 37622 |
| 10 | 5902 | 36633 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-29 00:00-23:59 UTC
total number of suspected botnet IPs: 19154
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18111
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 | 1917 |
| 2 | MSFT | 1334 |
| 3 | GOOGLE-CLOUD | 1005 |
| 4 | PAN-22 | 951 |
| 5 | ASEPL-SG | 818 |
| 6 | VOLCANO-ENGINE | 401 |
| 7 | FR-ONYPHE-20191111 | 400 |
| 8 | CENSY | 357 |
| 9 | ALISOFT | 310 |
| 10 | cloud | 292 |
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 | 9480 |
| 2 | China | 3482 |
| 3 | Singapore | 1290 |
| 4 | France | 466 |
| 5 | Hong Kong | 357 |
| 6 | Indonesia | 320 |
| 7 | Netherlands | 308 |
| 8 | South Korea | 258 |
| 9 | United Kingdom | 235 |
| 10 | India | 216 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 363825 |
| 2 | 6622 | 99014 |
| 3 | 2254 | 83769 |
| 4 | 6666 | 74683 |
| 5 | 6005 | 51827 |
| 6 | 57622 | 48945 |
| 7 | 5522 | 44017 |
| 8 | 5902 | 38020 |
| 9 | 5357 | 36421 |
| 10 | 7722 | 36328 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-28 00:00-23:59 UTC
total number of suspected botnet IPs: 18437
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17515
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 | 1720 |
| 2 | MSFT | 1337 |
| 3 | GOOGLE-CLOUD | 1001 |
| 4 | PAN-22 | 946 |
| 5 | ASEPL-SG | 900 |
| 6 | FR-ONYPHE-20191111 | 400 |
| 7 | CENSY | 367 |
| 8 | VOLCANO-ENGINE | 361 |
| 9 | cloud | 320 |
| 10 | ALISOFT | 302 |
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 | 8522 |
| 2 | China | 3562 |
| 3 | Singapore | 1361 |
| 4 | France | 471 |
| 5 | Hong Kong | 368 |
| 6 | Indonesia | 335 |
| 7 | Netherlands | 323 |
| 8 | India | 279 |
| 9 | Germany | 234 |
| 10 | South Korea | 227 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 364311 |
| 2 | 5357 | 90539 |
| 3 | 6622 | 79226 |
| 4 | 6666 | 75269 |
| 5 | 2078 | 65142 |
| 6 | 2299 | 60987 |
| 7 | 9443 | 55634 |
| 8 | 2222 | 52667 |
| 9 | 8082 | 52300 |
| 10 | 51005 | 51784 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-27 00:00-23:59 UTC
total number of suspected botnet IPs: 19056
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17909
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 | 1865 |
| 2 | MSFT | 1341 |
| 3 | GOOGLE-CLOUD | 1002 |
| 4 | ASEPL-SG | 975 |
| 5 | PAN-22 | 950 |
| 6 | FR-ONYPHE-20191111 | 410 |
| 7 | VOLCANO-ENGINE | 369 |
| 8 | CENSY | 364 |
| 9 | ALISOFT | 297 |
| 10 | UCLOUD-HK | 263 |
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 | 8447 |
| 2 | China | 3817 |
| 3 | Singapore | 1298 |
| 4 | France | 483 |
| 5 | Hong Kong | 374 |
| 6 | Indonesia | 361 |
| 7 | Netherlands | 333 |
| 8 | India | 292 |
| 9 | South Korea | 271 |
| 10 | United Kingdom | 221 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 405824 |
| 2 | 2078 | 101370 |
| 3 | 2204 | 89787 |
| 4 | 8015 | 88288 |
| 5 | 8082 | 74027 |
| 6 | 2222 | 73805 |
| 7 | 8000 | 71101 |
| 8 | 9443 | 65225 |
| 9 | 2299 | 60553 |
| 10 | 2255 | 60228 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-26 00:00-23:59 UTC
total number of suspected botnet IPs: 19503
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18529
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 | 1863 |
| 2 | MSFT | 1350 |
| 3 | ASEPL-SG | 980 |
| 4 | GOOGLE-CLOUD | 926 |
| 5 | PAN-22 | 910 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 366 |
| 8 | CENSY | 365 |
| 9 | cloud | 328 |
| 10 | ALISOFT | 295 |
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 | 8985 |
| 2 | China | 3457 |
| 3 | Singapore | 1445 |
| 4 | France | 566 |
| 5 | Indonesia | 387 |
| 6 | Netherlands | 361 |
| 7 | Hong Kong | 356 |
| 8 | India | 298 |
| 9 | South Korea | 273 |
| 10 | United Kingdom | 259 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 445878 |
| 2 | 2078 | 177923 |
| 3 | 2204 | 105101 |
| 4 | 8000 | 85372 |
| 5 | 888 | 85247 |
| 6 | 5357 | 80880 |
| 7 | 554 | 79532 |
| 8 | 2000 | 76415 |
| 9 | 6000 | 74702 |
| 10 | 7722 | 70084 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-25 00:00-23:59 UTC
total number of suspected botnet IPs: 19122
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18113
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 | 1622 |
| 2 | MSFT | 1335 |
| 3 | GOOGLE-CLOUD | 996 |
| 4 | PAN-22 | 950 |
| 5 | ASEPL-SG | 947 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 392 |
| 8 | CENSY | 364 |
| 9 | cloud | 328 |
| 10 | ALISOFT | 317 |
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 | 8429 |
| 2 | China | 3568 |
| 3 | Singapore | 1412 |
| 4 | France | 581 |
| 5 | Indonesia | 423 |
| 6 | Hong Kong | 342 |
| 7 | India | 335 |
| 8 | Netherlands | 334 |
| 9 | South Korea | 279 |
| 10 | Brazil | 262 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 402659 |
| 2 | 2078 | 276937 |
| 3 | 7777 | 230821 |
| 4 | 55555 | 185628 |
| 5 | 2000 | 128770 |
| 6 | 888 | 116717 |
| 7 | 8082 | 113813 |
| 8 | 2204 | 108775 |
| 9 | 8000 | 100149 |
| 10 | 2095 | 100036 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-24 00:00-23:59 UTC
total number of suspected botnet IPs: 16994
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16145
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 | 1341 |
| 2 | AL-3 | 1094 |
| 3 | GOOGLE-CLOUD | 999 |
| 4 | PAN-22 | 948 |
| 5 | ASEPL-SG | 684 |
| 6 | FR-ONYPHE-20191111 | 447 |
| 7 | VOLCANO-ENGINE | 373 |
| 8 | CENSY | 363 |
| 9 | cloud | 299 |
| 10 | ALISOFT | 286 |
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 | 8182 |
| 2 | China | 3333 |
| 3 | Singapore | 896 |
| 4 | France | 530 |
| 5 | Netherlands | 350 |
| 6 | Hong Kong | 313 |
| 7 | India | 258 |
| 8 | Indonesia | 244 |
| 9 | South Korea | 236 |
| 10 | United Kingdom | 204 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 325892 |
| 2 | 7777 | 225890 |
| 3 | 2078 | 162527 |
| 4 | 8082 | 125279 |
| 5 | 2222 | 110311 |
| 6 | 2204 | 107384 |
| 7 | 55555 | 87882 |
| 8 | 6817 | 80000 |
| 9 | 2000 | 79605 |
| 10 | 8000 | 68854 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-23 00:00-23:59 UTC
total number of suspected botnet IPs: 16822
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15994
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 | 1309 |
| 2 | AL-3 | 1110 |
| 3 | GOOGLE-CLOUD | 1001 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 730 |
| 6 | CENSY | 533 |
| 7 | FR-ONYPHE-20191111 | 448 |
| 8 | VOLCANO-ENGINE | 371 |
| 9 | cloud | 314 |
| 10 | ALISOFT | 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 | 8077 |
| 2 | China | 3264 |
| 3 | Singapore | 959 |
| 4 | France | 527 |
| 5 | Hong Kong | 329 |
| 6 | Netherlands | 305 |
| 7 | India | 252 |
| 8 | Indonesia | 240 |
| 9 | South Korea | 229 |
| 10 | United Kingdom | 214 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 228545 |
| 2 | 2204 | 103521 |
| 3 | 7777 | 90208 |
| 4 | 2078 | 70279 |
| 5 | 6000 | 65574 |
| 6 | 2299 | 59908 |
| 7 | 2222 | 52375 |
| 8 | 8082 | 47402 |
| 9 | 5902 | 47017 |
| 10 | 5901 | 41145 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-22 00:00-23:59 UTC
total number of suspected botnet IPs: 17301
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16451
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 | 1357 |
| 2 | AL-3 | 1157 |
| 3 | GOOGLE-CLOUD | 1006 |
| 4 | PAN-22 | 951 |
| 5 | ASEPL-SG | 802 |
| 6 | CENSY | 560 |
| 7 | FR-ONYPHE-20191111 | 448 |
| 8 | VOLCANO-ENGINE | 381 |
| 9 | cloud | 312 |
| 10 | ALISOFT | 289 |
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 | 8495 |
| 2 | China | 3271 |
| 3 | Singapore | 1031 |
| 4 | France | 535 |
| 5 | Netherlands | 342 |
| 6 | Hong Kong | 325 |
| 7 | South Korea | 261 |
| 8 | Indonesia | 234 |
| 9 | United Kingdom | 231 |
| 10 | India | 225 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 210450 |
| 2 | 2078 | 131716 |
| 3 | 7777 | 123125 |
| 4 | 2204 | 95001 |
| 5 | 8082 | 80270 |
| 6 | 2222 | 71126 |
| 7 | 8015 | 70568 |
| 8 | 2299 | 61060 |
| 9 | 55555 | 60433 |
| 10 | 888 | 58150 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-21 00:00-23:59 UTC
total number of suspected botnet IPs: 17275
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16176
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 | 1335 |
| 2 | AL-3 | 1134 |
| 3 | GOOGLE-CLOUD | 1003 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 702 |
| 6 | CENSY | 480 |
| 7 | FR-ONYPHE-20191111 | 448 |
| 8 | VOLCANO-ENGINE | 391 |
| 9 | ALISOFT | 301 |
| 10 | cloud | 270 |
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 | 8096 |
| 2 | China | 3472 |
| 3 | Singapore | 1042 |
| 4 | France | 541 |
| 5 | Hong Kong | 320 |
| 6 | Netherlands | 310 |
| 7 | South Korea | 233 |
| 8 | Indonesia | 232 |
| 9 | United Kingdom | 222 |
| 10 | India | 210 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 2078 | 136306 |
| 2 | 5900 | 122566 |
| 3 | 888 | 116557 |
| 4 | 2204 | 101920 |
| 5 | 7777 | 98347 |
| 6 | 8015 | 96970 |
| 7 | 9443 | 91723 |
| 8 | 8082 | 81701 |
| 9 | 8000 | 65285 |
| 10 | 2299 | 60765 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-20 00:00-23:59 UTC
total number of suspected botnet IPs: 17231
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16313
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 | 1349 |
| 2 | AL-3 | 1183 |
| 3 | GOOGLE-CLOUD | 1007 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 817 |
| 6 | CENSY | 472 |
| 7 | FR-ONYPHE-20191111 | 448 |
| 8 | VOLCANO-ENGINE | 405 |
| 9 | cloud | 315 |
| 10 | ALISOFT | 298 |
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 | 8043 |
| 2 | China | 3376 |
| 3 | Singapore | 1044 |
| 4 | France | 540 |
| 5 | Hong Kong | 340 |
| 6 | Netherlands | 315 |
| 7 | South Korea | 263 |
| 8 | Indonesia | 242 |
| 9 | India | 232 |
| 10 | United Kingdom | 219 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 151055 |
| 2 | 8015 | 113877 |
| 3 | 2026 | 94678 |
| 4 | 888 | 88035 |
| 5 | 2078 | 84926 |
| 6 | 2204 | 80614 |
| 7 | 3306 | 72306 |
| 8 | 2222 | 71066 |
| 9 | 9443 | 64745 |
| 10 | 7777 | 63793 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-19 00:00-23:59 UTC
total number of suspected botnet IPs: 18432
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17396
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 | 1350 |
| 2 | AL-3 | 1179 |
| 3 | GOOGLE-CLOUD | 1019 |
| 4 | PAN-22 | 950 |
| 5 | ASEPL-SG | 792 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | CENSY | 423 |
| 8 | VOLCANO-ENGINE | 401 |
| 9 | CHINANET-SC | 329 |
| 10 | ALISOFT | 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 | 8597 |
| 2 | China | 3706 |
| 3 | Singapore | 1057 |
| 4 | France | 552 |
| 5 | Netherlands | 394 |
| 6 | Hong Kong | 362 |
| 7 | India | 244 |
| 8 | Indonesia | 242 |
| 9 | South Korea | 238 |
| 10 | Germany | 212 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 193181 |
| 2 | 888 | 125492 |
| 3 | 7777 | 100654 |
| 4 | 8015 | 90994 |
| 5 | 2222 | 89132 |
| 6 | 2000 | 88824 |
| 7 | 3306 | 76224 |
| 8 | 1111 | 70036 |
| 9 | 9443 | 62010 |
| 10 | 2026 | 59792 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-18 00:00-23:59 UTC
total number of suspected botnet IPs: 18074
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17198
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 | 1346 |
| 2 | AL-3 | 1223 |
| 3 | GOOGLE-CLOUD | 1002 |
| 4 | PAN-22 | 948 |
| 5 | ASEPL-SG | 851 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 385 |
| 8 | CENSY | 377 |
| 9 | CHINANET-SC | 356 |
| 10 | cloud | 324 |
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 | 8228 |
| 2 | China | 3793 |
| 3 | Singapore | 1065 |
| 4 | France | 541 |
| 5 | Hong Kong | 387 |
| 6 | Netherlands | 341 |
| 7 | Indonesia | 291 |
| 8 | India | 244 |
| 9 | Viet Nam | 230 |
| 10 | United Kingdom | 223 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 191121 |
| 2 | 888 | 94500 |
| 3 | 7777 | 89452 |
| 4 | 1111 | 80518 |
| 5 | 2000 | 51372 |
| 6 | 2222 | 49585 |
| 7 | 8015 | 46703 |
| 8 | 22 | 43363 |
| 9 | 5902 | 40873 |
| 10 | 9443 | 38823 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-17 00:00-23:59 UTC
total number of suspected botnet IPs: 18621
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17717
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 | 1350 |
| 2 | AL-3 | 1211 |
| 3 | GOOGLE-CLOUD | 1014 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 817 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 385 |
| 8 | CENSY | 377 |
| 9 | cloud | 335 |
| 10 | ALISOFT | 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 | 8755 |
| 2 | China | 3677 |
| 3 | Singapore | 1033 |
| 4 | France | 540 |
| 5 | Hong Kong | 394 |
| 6 | Netherlands | 363 |
| 7 | Indonesia | 294 |
| 8 | Germany | 289 |
| 9 | India | 255 |
| 10 | United Kingdom | 254 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 123216 |
| 2 | 1111 | 62544 |
| 3 | 888 | 62358 |
| 4 | 2222 | 60991 |
| 5 | 2203 | 56599 |
| 6 | 2000 | 47135 |
| 7 | 9443 | 41721 |
| 8 | 5902 | 38477 |
| 9 | 8085 | 34392 |
| 10 | 22 | 34341 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-16 00:00-23:59 UTC
total number of suspected botnet IPs: 18108
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17122
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 | 1320 |
| 2 | AL-3 | 1220 |
| 3 | GOOGLE-CLOUD | 995 |
| 4 | PAN-22 | 944 |
| 5 | ASEPL-SG | 809 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 390 |
| 8 | CENSY | 379 |
| 9 | cloud | 303 |
| 10 | ALISOFT | 301 |
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 | 8361 |
| 2 | China | 3620 |
| 3 | Singapore | 1033 |
| 4 | France | 540 |
| 5 | Hong Kong | 405 |
| 6 | Netherlands | 326 |
| 7 | Indonesia | 310 |
| 8 | United Kingdom | 239 |
| 9 | South Korea | 238 |
| 10 | India | 232 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 179135 |
| 2 | 18422 | 88879 |
| 3 | 9011 | 83845 |
| 4 | 2203 | 71078 |
| 5 | 2251 | 45327 |
| 6 | 5902 | 38958 |
| 7 | 22010 | 33333 |
| 8 | 22 | 33123 |
| 9 | 888 | 32377 |
| 10 | 2222 | 32214 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-15 00:00-23:59 UTC
total number of suspected botnet IPs: 18489
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17632
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 | 1344 |
| 2 | AL-3 | 1234 |
| 3 | GOOGLE-CLOUD | 1000 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 863 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 398 |
| 8 | CENSY | 369 |
| 9 | cloud | 323 |
| 10 | ALISOFT | 310 |
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 | 9028 |
| 2 | China | 3534 |
| 3 | Singapore | 1029 |
| 4 | France | 551 |
| 5 | Hong Kong | 385 |
| 6 | Netherlands | 364 |
| 7 | Indonesia | 265 |
| 8 | United Kingdom | 255 |
| 9 | India | 238 |
| 10 | South Korea | 234 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 245717 |
| 2 | 2251 | 107133 |
| 3 | 888 | 101247 |
| 4 | 2000 | 83445 |
| 5 | 8085 | 80053 |
| 6 | 2203 | 74434 |
| 7 | 789 | 70518 |
| 8 | 9011 | 67616 |
| 9 | 2222 | 59226 |
| 10 | 9443 | 51349 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-14 00:00-23:59 UTC
total number of suspected botnet IPs: 17464
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16626
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 | 1336 |
| 2 | AL-3 | 1237 |
| 3 | GOOGLE-CLOUD | 1003 |
| 4 | PAN-22 | 950 |
| 5 | ASEPL-SG | 845 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 388 |
| 8 | CENSY | 377 |
| 9 | cloud | 305 |
| 10 | ALISOFT | 305 |
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 | 8438 |
| 2 | China | 3170 |
| 3 | Singapore | 1048 |
| 4 | France | 540 |
| 5 | Hong Kong | 396 |
| 6 | Netherlands | 387 |
| 7 | Indonesia | 280 |
| 8 | South Korea | 261 |
| 9 | United Kingdom | 237 |
| 10 | India | 235 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 228863 |
| 2 | 8085 | 119056 |
| 3 | 888 | 109951 |
| 4 | 2203 | 83761 |
| 5 | 8088 | 71092 |
| 6 | 3306 | 68909 |
| 7 | 2000 | 65245 |
| 8 | 5357 | 62961 |
| 9 | 5322 | 52940 |
| 10 | 2251 | 48186 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-13 00:00-23:59 UTC
total number of suspected botnet IPs: 18571
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17468
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 | 1282 |
| 2 | MSFT | 1276 |
| 3 | GOOGLE-CLOUD | 1057 |
| 4 | PAN-22 | 949 |
| 5 | ASEPL-SG | 804 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 396 |
| 8 | CENSY | 378 |
| 9 | ALISOFT | 319 |
| 10 | UCLOUD-HK | 279 |
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 | 8656 |
| 2 | China | 2943 |
| 3 | Singapore | 1016 |
| 4 | France | 581 |
| 5 | Hong Kong | 422 |
| 6 | Netherlands | 383 |
| 7 | South Korea | 375 |
| 8 | India | 363 |
| 9 | Indonesia | 317 |
| 10 | Russian Federation | 266 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 222722 |
| 2 | 888 | 124014 |
| 3 | 2203 | 85492 |
| 4 | 8085 | 77915 |
| 5 | 6451 | 68899 |
| 6 | 22 | 56465 |
| 7 | 3306 | 51440 |
| 8 | 8088 | 50139 |
| 9 | 5357 | 41764 |
| 10 | 2000 | 41409 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-12 00:00-23:59 UTC
total number of suspected botnet IPs: 18968
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18095
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 | 1248 |
| 2 | AL-3 | 1220 |
| 3 | GOOGLE-CLOUD | 1024 |
| 4 | PAN-22 | 950 |
| 5 | ASEPL-SG | 887 |
| 6 | FR-ONYPHE-20191111 | 448 |
| 7 | VOLCANO-ENGINE | 390 |
| 8 | CENSY | 375 |
| 9 | ALISOFT | 312 |
| 10 | UCLOUD-HK | 279 |
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 | 8959 |
| 2 | China | 3661 |
| 3 | Singapore | 1140 |
| 4 | France | 562 |
| 5 | Netherlands | 429 |
| 6 | Hong Kong | 402 |
| 7 | Indonesia | 335 |
| 8 | South Korea | 263 |
| 9 | Germany | 244 |
| 10 | United Kingdom | 229 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 249120 |
| 2 | 56491 | 133044 |
| 3 | 2203 | 79074 |
| 4 | 888 | 57731 |
| 5 | 57277 | 53205 |
| 6 | 8085 | 44622 |
| 7 | 1188 | 42430 |
| 8 | 3838 | 39536 |
| 9 | 22 | 37877 |
| 10 | 697 | 34858 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-11 00:00-23:59 UTC
total number of suspected botnet IPs: 18307
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17208
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 | 1241 |
| 2 | MSFT | 1234 |
| 3 | GOOGLE-CLOUD | 1029 |
| 4 | PAN-22 | 946 |
| 5 | ASEPL-SG | 890 |
| 6 | FR-ONYPHE-20191111 | 447 |
| 7 | VOLCANO-ENGINE | 396 |
| 8 | CENSY | 366 |
| 9 | ALISOFT | 308 |
| 10 | UCLOUD-HK | 265 |
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 | 8313 |
| 2 | China | 3533 |
| 3 | Singapore | 1111 |
| 4 | France | 552 |
| 5 | Netherlands | 409 |
| 6 | Hong Kong | 383 |
| 7 | Indonesia | 337 |
| 8 | South Korea | 266 |
| 9 | United Kingdom | 246 |
| 10 | India | 240 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 198375 |
| 2 | 2203 | 86306 |
| 3 | 57496 | 71590 |
| 4 | 54034 | 63587 |
| 5 | 5155 | 63168 |
| 6 | 1196 | 50063 |
| 7 | 22 | 46145 |
| 8 | 55698 | 45791 |
| 9 | 6244 | 44852 |
| 10 | 36903 | 44089 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-10 00:00-23:59 UTC
total number of suspected botnet IPs: 19344
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18465
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 | 1276 |
| 2 | MSFT | 1237 |
| 3 | GOOGLE-CLOUD | 1033 |
| 4 | PAN-22 | 950 |
| 5 | ASEPL-SG | 914 |
| 6 | FR-ONYPHE-20191111 | 447 |
| 7 | VOLCANO-ENGINE | 393 |
| 8 | CENSY | 365 |
| 9 | ALISOFT | 320 |
| 10 | UCLOUD-HK | 278 |
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 | 9279 |
| 2 | China | 3540 |
| 3 | Singapore | 1232 |
| 4 | France | 554 |
| 5 | Hong Kong | 398 |
| 6 | Netherlands | 393 |
| 7 | Indonesia | 329 |
| 8 | Germany | 264 |
| 9 | United Kingdom | 255 |
| 10 | India | 241 |
The top 10 TCP ports, ordered by the number of connection attempts received are:
| Rank | TCP port number | # of connection attempts received |
|---|
| 1 | 5900 | 188055 |
| 2 | 5866 | 122660 |
| 3 | 51868 | 120517 |
| 4 | 3736 | 92491 |
| 5 | 7146 | 82777 |
| 6 | 2271 | 68795 |
| 7 | 8601 | 65964 |
| 8 | 2345 | 65733 |
| 9 | 33316 | 56406 |
| 10 | 50303 | 48879 |
(To download the latest zombie ip list, please visit the
Daily Zombie IP Lists for March 2026.
detection period: 2026-03-09 00:00-23:59 UTC
total number of suspected botnet IPs: 18911
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17972
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:
