Botnet Statistics [2026-02-12]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-12 00:00-23:59 UTC
total number of suspected botnet IPs: 20986
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19908
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	1431
2	AL-3	1333
3	GOOGLE-CLOUD	1012
4	PAN-22	950
5	VOLCANO-ENGINE	468
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	410
8	CENSY	378
9	ALISOFT	351
10	cloud	327

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	9678
2	China	4119
3	Singapore	738
4	France	548
5	India	466
6	Netherlands	457
7	Hong Kong	409
8	South Korea	322
9	United Kingdom	322
10	Russian Federation	299

Thursday, February 12, 2026

Botnet Statistics [2026-02-11]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-11 00:00-23:59 UTC
total number of suspected botnet IPs: 21406
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20279
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	TCP port number	# of connection attempts received
1	5900	298236
2	2243	86179
3	2762	81493
4	6673	69262
5	22	53580
6	7802	53435
7	6154	50799
8	3174	47654
9	3301	44356
10	4646	42780

Rank	Network	# of suspected botnet IPs
1	MSFT	1449
2	AL-3	1312
3	GOOGLE-CLOUD	996
4	PAN-22	946
5	VOLCANO-ENGINE	474
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	400
8	CENSY	372
9	ALISOFT	337
10	cloud	318

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	9302
2	China	4914
3	Singapore	757
4	France	550
5	Netherlands	445
6	India	441
7	Hong Kong	416
8	Russian Federation	352
9	United Kingdom	328
10	South Korea	323

Wednesday, February 11, 2026

Botnet Statistics [2026-02-10]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-10 00:00-23:59 UTC
total number of suspected botnet IPs: 22206
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 21105
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	TCP port number	# of connection attempts received
1	5900	345718
2	2243	95529
3	22	94850
4	2220	87804
5	12140	54685
6	8015	53111
7	3178	45829
8	3069	39976
9	2222	39922
10	888	39061

Rank	Network	# of suspected botnet IPs
1	MSFT	1428
2	AL-3	1328
3	GOOGLE-CLOUD	1004
4	PAN-22	949
5	VOLCANO-ENGINE	469
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	415
8	CENSY	377
9	ALISOFT	323
10	cloud	306

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	9587
2	China	5187
3	Singapore	799
4	Netherlands	575
5	France	553
6	India	446
7	Hong Kong	426
8	South Korea	336
9	Russian Federation	322
10	Indonesia	291

Tuesday, February 10, 2026

Botnet Statistics [2026-02-09]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-09 00:00-23:59 UTC
total number of suspected botnet IPs: 19768
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18651
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	TCP port number	# of connection attempts received
1	5900	212173
2	2220	87018
3	2243	74710
4	22	63348
5	8000	52144
6	14000	49007
7	12005	45580
8	2222	34265
9	2224	30189
10	888	30136

Rank	Network	# of suspected botnet IPs
1	MSFT	1374
2	AL-3	1076
3	GOOGLE-CLOUD	998
4	PAN-22	948
5	VOLCANO-ENGINE	462
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	421
8	CENSY	377
9	ALISOFT	329
10	cloud	288

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8720
2	China	3832
3	Singapore	816
4	France	549
5	Netherlands	489
6	India	447
7	Hong Kong	402
8	Russian Federation	319
9	South Korea	295
10	Indonesia	287

Monday, February 9, 2026

Botnet Statistics [2026-02-08]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-08 00:00-23:59 UTC
total number of suspected botnet IPs: 19917
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18878
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	TCP port number	# of connection attempts received
1	5900	353667
2	7722	112252
3	2220	87723
4	22	75840
5	6710	43962
6	2221	40571
7	7160	35364
8	2201	31564
9	2224	25646
10	2223	25437

Rank	Network	# of suspected botnet IPs
1	MSFT	1387
2	AL-3	1007
3	GOOGLE-CLOUD	1006
4	PAN-22	950
5	VOLCANO-ENGINE	460
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	403
8	CENSY	376
9	DO-13	324
10	ALISOFT	323

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	9268
2	China	3873
3	Singapore	773
4	France	533
5	Netherlands	418
6	South Korea	383
7	Hong Kong	370
8	India	369
9	Russian Federation	286
10	Indonesia	246

Sunday, February 8, 2026

Botnet Statistics [2026-02-07]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-07 00:00-23:59 UTC
total number of suspected botnet IPs: 20230
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18595
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	TCP port number	# of connection attempts received
1	5900	464534
2	22	105229
3	2220	94081
4	2201	42233
5	8000	34714
6	888	34295
7	54321	32149
8	2078	30480
9	8082	28812
10	2222	28478

Rank	Network	# of suspected botnet IPs
1	MSFT	1385
2	AL-3	1354
3	GOOGLE-CLOUD	1008
4	PAN-22	949
5	VOLCANO-ENGINE	466
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	418
8	CENSY	373
9	ALISOFT	317
10	CMNET	301

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8601
2	China	4115
3	Singapore	759
4	France	531
5	South Korea	450
6	India	439
7	Hong Kong	416
8	Netherlands	326
9	Russian Federation	287
10	Germany	260

Saturday, February 7, 2026

Botnet Statistics [2026-02-06]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-06 00:00-23:59 UTC
total number of suspected botnet IPs: 20188
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18654
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	TCP port number	# of connection attempts received
1	5900	467384
2	2220	87167
3	22	68197
4	2242	59541
5	2201	45891
6	5902	32852
7	54321	30025
8	2222	27410
9	9119	25477
10	2223	24977

Rank	Network	# of suspected botnet IPs
1	MSFT	1353
2	AL-3	1348
3	GOOGLE-CLOUD	1012
4	PAN-22	950
5	VOLCANO-ENGINE	474
6	FR-ONYPHE-20191111	448
7	ASEPL-SG	422
8	CENSY	371
9	ALISOFT	331
10	CMNET	294

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8523
2	China	3976
3	Singapore	746
4	France	540
5	South Korea	456
6	India	451
7	Hong Kong	402
8	Netherlands	332
9	Russian Federation	329
10	Indonesia	295

Friday, February 6, 2026

Botnet Statistics [2026-02-05]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-05 00:00-23:59 UTC
total number of suspected botnet IPs: 20291
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18608
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	TCP port number	# of connection attempts received
1	5900	394014
2	2220	84493
3	22	66329
4	2242	66157
5	2201	49511
6	6688	40487
7	54321	31929
8	5902	28780
9	8122	24493
10	8055	24462

Rank	Network	# of suspected botnet IPs
1	MSFT	1343
2	AL-3	1272
3	GOOGLE-CLOUD	1017
4	PAN-22	950
5	VOLCANO-ENGINE	512
6	FR-ONYPHE-20191111	416
7	ASEPL-SG	399
8	CENSY	373
9	ALISOFT	341
10	CMNET	276

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8907
2	China	3866
3	Singapore	709
4	France	519
5	India	435
6	Netherlands	421
7	Hong Kong	420
8	Russian Federation	339
9	South Korea	335
10	Indonesia	312

Thursday, February 5, 2026

Botnet Statistics [2026-02-04]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-04 00:00-23:59 UTC
total number of suspected botnet IPs: 20257
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18629
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	TCP port number	# of connection attempts received
1	5900	436033
2	4321	81266
3	2242	59566
4	22	58974
5	5630	54430
6	8520	53024
7	2201	50183
8	5555	39484
9	2225	33147
10	9999	32817

Rank	Network	# of suspected botnet IPs
1	MSFT	1368
2	AL-3	1223
3	GOOGLE-CLOUD	1007
4	PAN-22	946
5	VOLCANO-ENGINE	509
6	FR-ONYPHE-20191111	416
7	ASEPL-SG	410
8	ALISOFT	395
9	CENSY	378
10	CMNET	278

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8594
2	China	3986
3	Singapore	718
4	France	512
5	India	473
6	Hong Kong	411
7	Netherlands	385
8	South Korea	362
9	Russian Federation	334
10	Indonesia	314

Wednesday, February 4, 2026

Botnet Statistics [2026-02-03]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-03 00:00-23:59 UTC
total number of suspected botnet IPs: 20461
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18797
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	TCP port number	# of connection attempts received
1	5900	523518
2	4321	132757
3	5555	101992
4	5630	98833
5	2242	73282
6	4160	73045
7	7654	72788
8	22	69435
9	2255	64631
10	8024	59068

Rank	Network	# of suspected botnet IPs
1	MSFT	1417
2	AL-3	1262
3	GOOGLE-CLOUD	1006
4	PAN-22	950
5	VOLCANO-ENGINE	512
6	FR-ONYPHE-20191111	416
7	ASEPL-SG	416
8	CENSY	371
9	ALISOFT	337
10	CMNET	278

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8863
2	China	3868
3	Singapore	728
4	India	500
5	France	500
6	Hong Kong	419
7	Netherlands	378
8	Russian Federation	363
9	Indonesia	348
10	South Korea	331

Tuesday, February 3, 2026

Botnet Statistics [2026-02-02]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-02 00:00-23:59 UTC
total number of suspected botnet IPs: 19984
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18231
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	TCP port number	# of connection attempts received
1	5900	467798
2	4160	104056
3	5555	88359
4	2242	81005
5	7654	80991
6	2255	70652
7	2201	63428
8	2219	59252
9	9999	52248
10	22	45236

Rank	Network	# of suspected botnet IPs
1	MSFT	1385
2	GOOGLE-CLOUD	1008
3	AL-3	999
4	PAN-22	948
5	VOLCANO-ENGINE	548
6	ASEPL-SG	434
7	FR-ONYPHE-20191111	416
8	ALISOFT	377
9	CENSY	374
10	CMNET	291

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7835
2	China	4145
3	Singapore	745
4	France	530
5	India	473
6	Hong Kong	419
7	South Korea	356
8	Netherlands	347
9	Russian Federation	345
10	Indonesia	338

Monday, February 2, 2026

Botnet Statistics [2026-02-01]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for February 2026.
detection period: 2026-02-01 00:00-23:59 UTC
total number of suspected botnet IPs: 20367
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18711
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	TCP port number	# of connection attempts received
1	5900	400198
2	4160	91420
3	7654	69023
4	9999	60808
5	2242	60027
6	2219	58486
7	22	55565
8	2255	45358
9	8141	44515
10	2201	40446

Rank	Network	# of suspected botnet IPs
1	MSFT	1421
2	GOOGLE-CLOUD	1007
3	PAN-22	950
4	AL-3	948
5	VOLCANO-ENGINE	470
6	ASEPL-SG	423
7	FR-ONYPHE-20191111	416
8	ALISOFT	380
9	CENSY	377
10	CMNET	316

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8438
2	China	4315
3	Singapore	813
4	France	492
5	India	440
6	Hong Kong	407
7	South Korea	383
8	Russian Federation	338
9	Netherlands	319
10	Indonesia	244

Daily Zombie Lists for February 2026（2026年02月，每日殭屍電腦IP清單）

To facilitate security research, I will release the daily zombie IP lists in CSV format here for anyone interested to download. The data columns are defined as follows:

為協助資安方面的研究，我將每日釋出CSV格式的殭屍電腦IP清單，供任何有興趣的人下載。資料欄位定義如下：

Column 1: The date and time in UTC when the last connection attempt (port scans) from the zombie IP (column 2) was detected;

第1欄：該殭屍電腦最後一次被偵測到企圖連線的日期、時間，時區為UTC；

Column 2: Zombie IP;

第2欄：該殭屍電腦的IP位址；

Column 3: TCP destination port number scanned by the zombie.

第3欄：該殭屍電腦所掃描的TCP埠號。

Join the "Suspected Zombie IP List" Telegram channel to get notified when the latest data are ready for download.

想在第一時間取得資料下載網址？請加入Suspected Zombie IP List的Telegram頻道。

Here are the download links of the daily zombie IP lists for February 2026 (without excluding IP addresses of TOR exits and so-called security researchers' nodes.):

以下是2026年02月的每日殭屍電腦IP清單的下載網址(未濾除TOR exit與所謂“資安研究者”的主機IP)：

02/01: download link 下載網址; MD5sum: 9f749a9f2d0576255a8320dd97ecc47c

02/02: download link 下載網址; MD5sum: 0adab9f64b7464624697328031f73a55

02/03: download link 下載網址; MD5sum: 54b2e51236711b6ce6be45c61a1cb298

02/04: download link 下載網址; MD5sum: 160939ad1604aeb953c6bd07d10aabab

02/05: download link 下載網址; MD5sum: 560b67dfd3006f08e8b81a4fb5a21ab4

02/06: download link 下載網址; MD5sum: a8e1313baa1c5a009f9c86d2d40f4fd6

02/07: download link 下載網址; MD5sum: 181634a5645a5d8e0b723d49c6abb7a4

02/08: download link 下載網址; MD5sum: 4f44a99c158ceeb50e28822ab579fbe9

02/09: download link 下載網址; MD5sum: e58d0028bdd8968252364b7a87011629

02/10: download link 下載網址; MD5sum: e35f60d727509be2823ea0cb8e5e83ab

02/11: download link 下載網址; MD5sum: 5b6a7ee85fef408ad33c0789de214a7b

02/12: download link 下載網址; MD5sum: a36ca7f483f723e6a5ce46c38dc4306c

Sunday, February 1, 2026

Botnet Statistics [2026-01-31]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-31 00:00-23:59 UTC
total number of suspected botnet IPs: 20087
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18362
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	TCP port number	# of connection attempts received
1	5900	463685
2	22	68871
3	2242	68145
4	6666	67381
5	9999	50722
6	6000	38353
7	2026	30386
8	6001	29335
9	2222	28310
10	5902	26415

Rank	Network	# of suspected botnet IPs
1	MSFT	1453
2	GOOGLE-CLOUD	1008
3	PAN-22	950
4	AL-3	906
5	BYTEPLUS-SG	811
6	VOLCANO-ENGINE	472
7	ASEPL-SG	429
8	ALISOFT	387
9	CENSY	378
10	FR-ONYPHE-20191111	368

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7786
2	China	4015
3	Singapore	1428
4	India	481
5	France	415
6	Hong Kong	407
7	South Korea	379
8	Russian Federation	351
9	Netherlands	295
10	Brazil	265

Saturday, January 31, 2026

Botnet Statistics [2026-01-30]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-30 00:00-23:59 UTC
total number of suspected botnet IPs: 20733
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18946
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	TCP port number	# of connection attempts received
1	5900	394726
2	6666	86334
3	8811	67494
4	3332	62051
5	1234	55386
6	6000	49485
7	22	48413
8	9999	46757
9	22001	36715
10	2022	33951

Rank	Network	# of suspected botnet IPs
1	MSFT	1414
2	GOOGLE-CLOUD	1006
3	PAN-22	950
4	AL-3	911
5	BYTEPLUS-SG	854
6	VOLCANO-ENGINE	481
7	ASEPL-SG	438
8	ALISOFT	403
9	CENSY	381
10	FR-ONYPHE-20191111	368

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7889
2	China	4313
3	Singapore	1494
4	India	473
5	Hong Kong	429
6	France	416
7	Russian Federation	357
8	South Korea	351
9	Indonesia	304
10	Netherlands	275

Friday, January 30, 2026

Botnet Statistics [2026-01-29]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-29 00:00-23:59 UTC
total number of suspected botnet IPs: 21546
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19773
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	TCP port number	# of connection attempts received
1	5900	380608
2	2271	112459
3	6666	88689
4	1234	54629
5	22001	38417
6	5902	32158
7	6000	31965
8	1022	29482
9	22	27113
10	2222	24221

Rank	Network	# of suspected botnet IPs
1	MSFT	1428
2	GOOGLE-CLOUD	1006
3	PAN-22	950
4	BYTEPLUS-SG	849
5	AL-3	796
6	VOLCANO-ENGINE	489
7	ASEPL-SG	435
8	ALISOFT	378
9	CENSY	373
10	FR-ONYPHE-20191111	368

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8272
2	China	4579
3	Singapore	1506
4	India	497
5	France	429
6	Hong Kong	423
7	Russian Federation	365
8	South Korea	356
9	Netherlands	341
10	Brazil	313

Thursday, January 29, 2026

Botnet Statistics [2026-01-28]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-28 00:00-23:59 UTC
total number of suspected botnet IPs: 20830
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19100
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	TCP port number	# of connection attempts received
1	5900	387974
2	3412	89909
3	2026	80846
4	2241	80316
5	9026	78153
6	4242	71007
7	6666	59417
8	2271	54139
9	1234	52756
10	8008	45686

Rank	Network	# of suspected botnet IPs
1	MSFT	1324
2	GOOGLE-CLOUD	1008
3	PAN-22	948
4	BYTEPLUS-SG	846
5	AL-3	819
6	VOLCANO-ENGINE	498
7	ASEPL-SG	429
8	CENSY	381
9	ALISOFT	372
10	FR-ONYPHE-20191111	368

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7690
2	China	4421
3	Singapore	1472
4	India	494
5	Hong Kong	435
6	France	429
7	Russian Federation	367
8	South Korea	343
9	Netherlands	342
10	Indonesia	313

Wednesday, January 28, 2026

Botnet Statistics [2026-01-27]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-27 00:00-23:59 UTC
total number of suspected botnet IPs: 22290
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20508
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	TCP port number	# of connection attempts received
1	5900	237211
2	8008	115662
3	2241	103206
4	4808	77200
5	2026	58159
6	1234	45877
7	22	36542
8	9026	30734
9	5902	28964
10	2022	26746

Rank	Network	# of suspected botnet IPs
1	MSFT	1350
2	GOOGLE-CLOUD	1002
3	PAN-22	948
4	BYTEPLUS-SG	846
5	AL-3	810
6	VOLCANO-ENGINE	488
7	ASEPL-SG	438
8	ALISOFT	412
9	CENSY	380
10	FR-ONYPHE-20191111	374

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8633
2	China	4362
3	Singapore	1511
4	India	512
5	France	506
6	Netherlands	489
7	Hong Kong	446
8	Russian Federation	376
9	South Korea	354
10	Indonesia	310

Tuesday, January 27, 2026

Botnet Statistics [2026-01-26]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-26 00:00-23:59 UTC
total number of suspected botnet IPs: 22882
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20946
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	TCP port number	# of connection attempts received
1	5900	184297
2	2241	91898
3	22	48187
4	22522	34001
5	7322	30507
6	5902	28246
7	3022	25896
8	4808	21354
9	2248	20535
10	2222	20215

Rank	Network	# of suspected botnet IPs
1	MSFT	1373
2	GOOGLE-CLOUD	1000
3	PAN-22	944
4	BYTEPLUS-SG	848
5	AL-3	825
6	VOLCANO-ENGINE	483
7	ASEPL-SG	440
8	FR-ONYPHE-20191111	416
9	ALISOFT	396
10	CENSY	376

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8466
2	China	4786
3	Singapore	1490
4	Netherlands	550
5	France	521
6	India	473
7	Hong Kong	455
8	South Korea	398
9	Russian Federation	397
10	Indonesia	346

Monday, January 26, 2026

Botnet Statistics [2026-01-25]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-25 00:00-23:59 UTC
total number of suspected botnet IPs: 22326
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20560
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	TCP port number	# of connection attempts received
1	5900	175631
2	22	94877
3	1722	83755
4	4808	52562
5	4488	46370
6	2248	44817
7	12345	34091
8	1822	29388
9	5902	28441
10	13722	24939

Rank	Network	# of suspected botnet IPs
1	MSFT	1376
2	GOOGLE-CLOUD	1003
3	PAN-22	949
4	BYTEPLUS-SG	847
5	AL-3	799
6	VOLCANO-ENGINE	484
7	ASEPL-SG	449
8	FR-ONYPHE-20191111	415
9	ALISOFT	399
10	CENSY	373

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8636
2	China	4547
3	Singapore	1496
4	Netherlands	535
5	France	514
6	India	470
7	Hong Kong	445
8	Russian Federation	375
9	South Korea	373
10	Brazil	324

Sunday, January 25, 2026

Botnet Statistics [2026-01-24]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-24 00:00-23:59 UTC
total number of suspected botnet IPs: 22232
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20425
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	TCP port number	# of connection attempts received
1	5900	151706
2	22	98078
3	1722	71567
4	8004	51775
5	6666	31815
6	5902	31177
7	234	25215
8	2222	21840
9	6122	21000
10	2248	19764

Rank	Network	# of suspected botnet IPs
1	MSFT	1367
2	GOOGLE-CLOUD	1008
3	PAN-22	950
4	BYTEPLUS-SG	848
5	AL-3	811
6	VOLCANO-ENGINE	495
7	ALISOFT	457
8	ASEPL-SG	449
9	FR-ONYPHE-20191111	416
10	CENSY	378

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7818
2	China	5078
3	Singapore	1485
4	India	546
5	France	521
6	Netherlands	468
7	Hong Kong	444
8	Russian Federation	376
9	South Korea	365
10	Brazil	330

Saturday, January 24, 2026

Botnet Statistics [2026-01-23]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-23 00:00-23:59 UTC
total number of suspected botnet IPs: 23103
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 21251
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	TCP port number	# of connection attempts received
1	5900	178792
2	6666	73647
3	2240	69644
4	8004	65554
5	22	62860
6	1722	59311
7	234	56088
8	8865	51896
9	54138	36832
10	5902	32344

Rank	Network	# of suspected botnet IPs
1	MSFT	1367
2	GOOGLE-CLOUD	1004
3	PAN-22	950
4	BYTEPLUS-SG	847
5	AL-3	823
6	VOLCANO-ENGINE	500
7	ASEPL-SG	463
8	FR-ONYPHE-20191111	416
9	ALISOFT	393
10	CMNET	389

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	7927
2	China	5729
3	Singapore	1513
4	India	534
5	France	521
6	Hong Kong	461
7	Russian Federation	394
8	Netherlands	389
9	Indonesia	373
10	South Korea	372

Friday, January 23, 2026

Botnet Statistics [2026-01-22]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-22 00:00-23:59 UTC
total number of suspected botnet IPs: 24223
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 22300
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	TCP port number	# of connection attempts received
1	5900	173775
2	6666	83388
3	2240	70894
4	22	50793
5	9922	39819
6	9322	37976
7	5902	34127
8	2522	28934
9	9222	26669
10	8004	24733

Rank	Network	# of suspected botnet IPs
1	MSFT	1385
2	GOOGLE-CLOUD	999
3	PAN-22	950
4	BYTEPLUS-SG	848
5	AL-3	824
6	VOLCANO-ENGINE	494
7	ASEPL-SG	450
8	FR-ONYPHE-20191111	416
9	ALISOFT	389
10	CENSY	375

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8662
2	China	5632
3	Singapore	1533
4	India	570
5	France	527
6	Netherlands	431
7	Russian Federation	428
8	Hong Kong	415
9	South Korea	390
10	Indonesia	383

Thursday, January 22, 2026

Botnet Statistics [2026-01-21]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-21 00:00-23:59 UTC
total number of suspected botnet IPs: 23444
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 21479
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	TCP port number	# of connection attempts received
1	5900	168361
2	6666	80152
3	2240	69381
4	22	52613
5	9722	30633
6	5902	27578
7	2122	27351
8	9222	25832
9	444	23784
10	4022	23413

Rank	Network	# of suspected botnet IPs
1	MSFT	1345
2	GOOGLE-CLOUD	1007
3	PAN-22	946
4	BYTEPLUS-SG	881
5	AL-3	820
6	VOLCANO-ENGINE	563
7	ASEPL-SG	448
8	FR-ONYPHE-20191111	416
9	ALISOFT	411
10	CENSY	372

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8027
2	China	5526
3	Singapore	1536
4	India	590
5	France	537
6	Hong Kong	444
7	Indonesia	421
8	Russian Federation	415
9	Brazil	381
10	South Korea	376

Wednesday, January 21, 2026

Botnet Statistics [2026-01-20]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-20 00:00-23:59 UTC
total number of suspected botnet IPs: 23818
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 22065
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	TCP port number	# of connection attempts received
1	5900	178236
2	9722	73921
3	777	65772
4	2240	58217
5	6666	55777
6	8003	43017
7	58222	38860
8	2222	38630
9	22	37449
10	6622	34245

Rank	Network	# of suspected botnet IPs
1	MSFT	1356
2	GOOGLE-CLOUD	1003
3	PAN-22	949
4	BYTEPLUS-SG	881
5	AL-3	818
6	VOLCANO-ENGINE	472
7	ASEPL-SG	449
8	FR-ONYPHE-20191111	416
9	CENSY	379
10	ALISOFT	357

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8716
2	China	6018
3	Singapore	1515
4	India	527
5	France	487
6	Netherlands	449
7	Hong Kong	405
8	Russian Federation	390
9	Indonesia	344
10	Germany	335

Tuesday, January 20, 2026

Botnet Statistics [2026-01-19]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-19 00:00-23:59 UTC
total number of suspected botnet IPs: 23119
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 21353
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	TCP port number	# of connection attempts received
1	5900	195087
2	777	96851
3	9722	81787
4	22	77169
5	2288	58709
6	8003	54959
7	2332	41804
8	1453	30043
9	10000	29127
10	5902	24737

Rank	Network	# of suspected botnet IPs
1	MSFT	1381
2	GOOGLE-CLOUD	1002
3	PAN-22	939
4	BYTEPLUS-SG	878
5	AL-3	837
6	VOLCANO-ENGINE	475
7	ASEPL-SG	446
8	FR-ONYPHE-20191111	416
9	CENSY	374
10	CMNET	367

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8361
2	China	5139
3	Singapore	1538
4	India	544
5	France	494
6	Russian Federation	435
7	Hong Kong	428
8	Netherlands	395
9	Brazil	395
10	South Korea	373

Monday, January 19, 2026

Botnet Statistics [2026-01-18]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-18 00:00-23:59 UTC
total number of suspected botnet IPs: 25554
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 23513
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	TCP port number	# of connection attempts received
1	5900	265222
2	22	91312
3	2288	64910
4	8003	49701
5	777	28333
6	9722	24931
7	9222	23987
8	5902	23747
9	3422	21539
10	522	21429

Rank	Network	# of suspected botnet IPs
1	MSFT	1390
2	GOOGLE-CLOUD	1007
3	PAN-22	948
4	BYTEPLUS-SG	878
5	AL-3	850
6	VOLCANO-ENGINE	470
7	ASEPL-SG	453
8	FR-ONYPHE-20191111	416
9	ALISOFT	402
10	CENSY	378

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	9243
2	China	5264
3	Singapore	1491
4	Brazil	743
5	India	560
6	France	509
7	Netherlands	467
8	Russian Federation	455
9	Hong Kong	433
10	Indonesia	338

Sunday, January 18, 2026

Botnet Statistics [2026-01-17]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-17 00:00-23:59 UTC
total number of suspected botnet IPs: 28197
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 25308
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	TCP port number	# of connection attempts received
1	5900	340285
2	22	104299
3	7322	93655
4	2288	64989
5	13222	38289
6	28722	37229
7	2022	35187
8	8622	32481
9	333	29302
10	5902	26051

Rank	Network	# of suspected botnet IPs
1	MSFT	1390
2	GOOGLE-CLOUD	1007
3	PAN-22	949
4	BYTEPLUS-SG	878
5	AL-3	834
6	VOLCANO-ENGINE	465
7	ASEPL-SG	457
8	FR-ONYPHE-20191111	416
9	CENSY	377
10	ALISOFT	372

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8663
2	China	5852
3	Singapore	1497
4	Brazil	1194
5	India	777
6	Russian Federation	567
7	France	537
8	Indonesia	414
9	Hong Kong	411
10	Netherlands	389

Saturday, January 17, 2026

Botnet Statistics [2026-01-16]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for January 2026.
detection period: 2026-01-16 00:00-23:59 UTC
total number of suspected botnet IPs: 28660
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 25826
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	TCP port number	# of connection attempts received
1	5900	358756
2	22	68250
3	9822	67430
4	2288	64978
5	2255	43940
6	7070	40435
7	55022	36592
8	8222	36232
9	7322	33534
10	2022	29650

Rank	Network	# of suspected botnet IPs
1	MSFT	1407
2	GOOGLE-CLOUD	1002
3	PAN-22	949
4	BYTEPLUS-SG	878
5	AL-3	851
6	VOLCANO-ENGINE	478
7	ASEPL-SG	462
8	FR-ONYPHE-20191111	416
9	ALISOFT	391
10	CENSY	381

The top 10 countries (as defined by the 2-character country code), ordered by the number of suspected botnet IPs are:

The top 10 TCP ports, ordered by the number of connection attempts received are:

Rank	Country/Region	# of suspected botnet IPs
1	United States	8808
2	China	6088
3	Singapore	1504
4	Brazil	1082
5	India	811
6	Russian Federation	592
7	France	539
8	Hong Kong	436
9	South Korea	430
10	Indonesia	395

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About Botnet Tracker

Chih-Cherng Chin

Taiwan

I submitted a paper titled "Follow the spam: a botnet detection and notification mechanism" (in Chinese) to this year's TANET conference (TANET 2010), and it has been accepted. In that paper, I pointed out the problem with botnet mitigation measures which focus on taking C&C servers offline, described the detection strategy of "follow the spam," and made a general sketch of how I detect and report botnets. So far I have only implemented half of the "follow the spam" strategy. Hope someone else will implement the other half.

My previous work was an open relay detection and notification system (presented at TANET 2006 conference), which was able to uncover more than 1200 open relays (confirmed by ORDB) each month at the time.

View my complete profile

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Rank	TCP port number	# of connection attempts received
1	5900	324098
2	7070	99031
3	4675	69937
4	117	69780
5	8863	69760
6	8222	68907
7	2288	64432
8	9822	63434
9	2255	54470
10	2212	47459