Botnet Statistics [2026-05-06]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-06 00:00-23:59 UTC
total number of suspected botnet IPs: 21048
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19533
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	1481
2	MSFT	1417
3	GOOGLE-CLOUD	1027
4	INFRAWATCH	1014
5	PAN-22	953
6	ASEPL-SG	499
7	FR-ONYPHE-20191111	448
8	CENSY	375
9	VOLCANO-ENGINE	306
10	FR-ONYPHE-20221109	240

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	8436
2	China	3595
3	United Kingdom	876
4	Singapore	800
5	Netherlands	569
6	France	567
7	Germany	564
8	India	442
9	Brazil	388
10	Hong Kong	367

Wednesday, May 6, 2026

Botnet Statistics [2026-05-05]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-05 00:00-23:59 UTC
total number of suspected botnet IPs: 22165
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20932
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	413872
2	2222	43769
3	2231	43023
4	22	42153
5	2209	41936
6	1122	40901
7	23	36120
8	622	31420
9	1919	29777
10	30	27165

Rank	Network	# of suspected botnet IPs
1	AL-3	1570
2	MSFT	1455
3	INFRAWATCH	1015
4	GOOGLE-CLOUD	1014
5	PAN-22	954
6	ASEPL-SG	546
7	FR-ONYPHE-20191111	448
8	CENSY	377
9	cloud	321
10	VOLCANO-ENGINE	314

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	9586
2	China	3688
3	Singapore	873
4	United Kingdom	867
5	Netherlands	616
6	Germany	587
7	France	583
8	India	411
9	Brazil	388
10	Hong Kong	358

Tuesday, May 5, 2026

Botnet Statistics [2026-05-04]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-04 00:00-23:59 UTC
total number of suspected botnet IPs: 21411
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19960
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	459548
2	2209	53517
3	3014	38860
4	23	37450
5	1122	36217
6	22	36165
7	2222	34731
8	4709	28937
9	7622	27438
10	2622	24403

Rank	Network	# of suspected botnet IPs
1	AL-3	1579
2	MSFT	1454
3	GOOGLE-CLOUD	1023
4	PAN-22	954
5	INFRAWATCH	748
6	ASEPL-SG	541
7	FR-ONYPHE-20191111	448
8	CENSY	381
9	VOLCANO-ENGINE	308
10	cloud	303

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	9010
2	China	3761
3	Singapore	880
4	United Kingdom	854
5	Netherlands	585
6	France	564
7	Brazil	455
8	India	376
9	Indonesia	348
10	Hong Kong	331

Monday, May 4, 2026

Botnet Statistics [2026-05-03]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-03 00:00-23:59 UTC
total number of suspected botnet IPs: 21773
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20593
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	419293
2	2209	54126
3	23	43051
4	450	38936
5	3014	36566
6	2280	35091
7	8821	32022
8	2222	29268
9	22	28994
10	1122	27074

Rank	Network	# of suspected botnet IPs
1	AL-3	1545
2	MSFT	1463
3	GOOGLE-CLOUD	1041
4	INFRAWATCH	1001
5	PAN-22	952
6	ASEPL-SG	545
7	FR-ONYPHE-20191111	448
8	CENSY	375
9	cloud	335
10	VOLCANO-ENGINE	310

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	9713
2	China	3490
3	Singapore	925
4	United Kingdom	908
5	Netherlands	593
6	France	571
7	Germany	565
8	Brazil	484
9	India	357
10	Hong Kong	330

Sunday, May 3, 2026

Botnet Statistics [2026-05-02]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-02 00:00-23:59 UTC
total number of suspected botnet IPs: 21303
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20049
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	474450
2	7777	147065
3	58603	135049
4	23	87962
5	8821	72995
6	3306	72862
7	450	63842
8	5357	58961
9	2209	54121
10	2252	51267

Rank	Network	# of suspected botnet IPs
1	MSFT	1490
2	AL-3	1451
3	INFRAWATCH	1035
4	GOOGLE-CLOUD	1033
5	PAN-22	954
6	ASEPL-SG	523
7	FR-ONYPHE-20191111	448
8	CENSY	379
9	cloud	337
10	VOLCANO-ENGINE	321

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	8832
2	China	3555
3	Singapore	877
4	United Kingdom	871
5	Germany	646
6	Netherlands	591
7	France	577
8	Brazil	510
9	India	459
10	Hong Kong	334

Saturday, May 2, 2026

Botnet Statistics [2026-05-01]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for May 2026.
detection period: 2026-05-01 00:00-23:59 UTC
total number of suspected botnet IPs: 22256
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 20879
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	487709
2	23	142035
3	7777	125922
4	58603	80778
5	8088	62554
6	2252	51265
7	8082	40174
8	51005	37866
9	11361	36255
10	2209	35092

Rank	Network	# of suspected botnet IPs
1	AL-3	1519
2	MSFT	1453
3	GOOGLE-CLOUD	1042
4	INFRAWATCH	1004
5	PAN-22	952
6	ASEPL-SG	516
7	FR-ONYPHE-20191111	448
8	CENSY	382
9	cloud	316
10	VOLCANO-ENGINE	312

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	9335
2	China	3328
3	United Kingdom	914
4	Singapore	876
5	Netherlands	644
6	Germany	630
7	France	620
8	India	535
9	Brazil	500
10	Indonesia	365

Daily Zombie Lists for May 2026（2026年05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 May 2026 (without excluding IP addresses of TOR exits and so-called security researchers' nodes.):

以下是2026年05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)：

05/01: download link 下載網址; MD5sum: b5c91d5b9d5abfaad8916d4dca40e513

05/02: download link 下載網址; MD5sum: 3f90f43a49a1237f31d70928f550657b

05/03: download link 下載網址; MD5sum: be255f5cc7e639f4e2dfc47d9a316d0b

05/04: download link 下載網址; MD5sum: d74330fbc22a11ab01e404ced57517e4

05/05: download link 下載網址; MD5sum: e180e5d4af90c746608c5de74a825747

05/06: download link 下載網址; MD5sum: 50f2a61d0edf5ff9b17043817c09beb2

Friday, May 1, 2026

Botnet Statistics [2026-04-30]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-30 00:00-23:59 UTC
total number of suspected botnet IPs: 23468
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 22016
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	457650
2	23	314304
3	8088	116313
4	8594	71640
5	7777	62648
6	2252	51004
7	2278	49064
8	22	35287
9	2108	29040
10	1122	25791

Rank	Network	# of suspected botnet IPs
1	AL-3	1544
2	MSFT	1517
3	GOOGLE-CLOUD	1050
4	PAN-22	955
5	ASEPL-SG	481
6	FR-ONYPHE-20191111	400
7	CENSY	381
8	INFRAWATCH	332
9	VOLCANO-ENGINE	319
10	cloud	289

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	10258
2	China	3500
3	United Kingdom	1032
4	Singapore	871
5	Germany	692
6	India	564
7	Netherlands	558
8	France	533
9	Indonesia	435
10	Brazil	391

Thursday, April 30, 2026

Botnet Statistics [2026-04-29]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-29 00:00-23:59 UTC
total number of suspected botnet IPs: 19977
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18792
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	520702
2	23	362870
3	110	116158
4	9011	63360
5	2252	51291
6	8088	38545
7	22	31388
8	8082	28084
9	8015	27449
10	1122	25417

Rank	Network	# of suspected botnet IPs
1	AL-3	1560
2	MSFT	1465
3	GOOGLE-CLOUD	1051
4	PAN-22	953
5	ASEPL-SG	523
6	FR-ONYPHE-20191111	400
7	CENSY	379
8	INFRAWATCH	332
9	cloud	330
10	VOLCANO-ENGINE	317

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	8622
2	China	3445
3	United Kingdom	916
4	Singapore	743
5	Germany	575
6	Netherlands	489
7	France	484
8	Indonesia	390
9	India	375
10	Hong Kong	336

Wednesday, April 29, 2026

Botnet Statistics [2026-04-28]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-28 00:00-23:59 UTC
total number of suspected botnet IPs: 20862
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19562
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	539172
2	110	233153
3	8088	218874
4	8082	103115
5	8787	67816
6	2252	44781
7	8015	44585
8	5432	36567
9	2208	36335
10	2222	33452

Rank	Network	# of suspected botnet IPs
1	AL-3	1529
2	MSFT	1438
3	GOOGLE-CLOUD	1031
4	PAN-22	955
5	ASEPL-SG	492
6	FR-ONYPHE-20191111	400
7	CENSY	382
8	VOLCANO-ENGINE	332
9	INFRAWATCH	331
10	UCLOUD-HK	266

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	9090
2	China	3687
3	United Kingdom	1022
4	Singapore	712
5	Germany	532
6	France	518
7	Netherlands	502
8	Brazil	412
9	Hong Kong	369
10	Indonesia	343

Tuesday, April 28, 2026

Botnet Statistics [2026-04-27]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-27 00:00-23:59 UTC
total number of suspected botnet IPs: 19945
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18873
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	523212
2	221	76914
3	2208	41100
4	8088	36821
5	22	32698
6	1122	25098
7	110	23259
8	8082	22095
9	3503	19768
10	5700	18120

Rank	Network	# of suspected botnet IPs
1	AL-3	1558
2	MSFT	1470
3	GOOGLE-CLOUD	1046
4	PAN-22	950
5	ASEPL-SG	516
6	FR-ONYPHE-20191111	408
7	CENSY	377
8	INFRAWATCH	341
9	VOLCANO-ENGINE	328
10	cloud	328

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	8461
2	China	3613
3	United Kingdom	1004
4	Singapore	849
5	France	542
6	Germany	497
7	Netherlands	457
8	Indonesia	398
9	Brazil	381
10	Hong Kong	378

Botnet Statistics [2026-04-26]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-26 00:00-23:59 UTC
total number of suspected botnet IPs: 20234
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 19208
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	427329
2	7473	58093
3	5357	47430
4	9164	46909
5	2208	41718
6	4922	39986
7	8020	38776
8	1890	38355
9	9443	33069
10	22	30496

Rank	Network	# of suspected botnet IPs
1	AL-3	1484
2	MSFT	1453
3	GOOGLE-CLOUD	1032
4	PAN-22	953
5	ASEPL-SG	504
6	FR-ONYPHE-20191111	448
7	CENSY	379
8	INFRAWATCH	342
9	VOLCANO-ENGINE	332
10	cloud	326

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	9131
2	China	3547
3	United Kingdom	1019
4	Singapore	729
5	France	579
6	Germany	552
7	Netherlands	497
8	Hong Kong	388
9	Brazil	376
10	Indonesia	308

Sunday, April 26, 2026

Botnet Statistics [2026-04-25]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-25 00:00-23:59 UTC
total number of suspected botnet IPs: 19902
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18894
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	7473	1090355
2	9164	883850
3	5900	425771
4	8153	368941
5	7787	315747
6	4092	250802
7	4030	188501
8	9559	185525
9	1871	171476
10	5357	151475

Rank	Network	# of suspected botnet IPs
1	AL-3	1516
2	MSFT	1461
3	GOOGLE-CLOUD	1007
4	PAN-22	953
5	CLOUDFLARENET	727
6	ASEPL-SG	528
7	FR-ONYPHE-20191111	448
8	CENSY	375
9	VOLCANO-ENGINE	314
10	cloud	310

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	8995
2	China	3557
3	United Kingdom	1013
4	Singapore	837
5	France	569
6	Netherlands	448
7	Hong Kong	371
8	Indonesia	347
9	India	296
10	Brazil	271

Saturday, April 25, 2026

Botnet Statistics [2026-04-24]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-24 00:00-23:59 UTC
total number of suspected botnet IPs: 18506
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17478
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	358994
2	7473	283595
3	4092	275193
4	9164	210557
5	25900	189419
6	8153	188548
7	1871	186305
8	6689	186070
9	1890	160476
10	5356	144340

Rank	Network	# of suspected botnet IPs
1	AL-3	1459
2	MSFT	1449
3	GOOGLE-CLOUD	1033
4	PAN-22	956
5	ASEPL-SG	514
6	FR-ONYPHE-20191111	448
7	CENSY	382
8	cloud	330
9	VOLCANO-ENGINE	317
10	UCLOUD-HK	268

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	8157
2	China	3372
3	Singapore	856
4	United Kingdom	614
5	France	558
6	Hong Kong	379
7	Netherlands	373
8	Indonesia	366
9	India	311
10	Russian Federation	261

Friday, April 24, 2026

Botnet Statistics [2026-04-23]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-23 00:00-23:59 UTC
total number of suspected botnet IPs: 18755
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17701
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	330385
2	2232	70215
3	8015	56029
4	5357	55925
5	8088	52429
6	5408	45098
7	8000	35728
8	6318	34615
9	7277	29787
10	2078	29153

Rank	Network	# of suspected botnet IPs
1	AL-3	1412
2	MSFT	1316
3	GOOGLE-CLOUD	1042
4	PAN-22	948
5	ASEPL-SG	489
6	FR-ONYPHE-20191111	448
7	CENSY	379
8	cloud	323
9	VOLCANO-ENGINE	318
10	UCLOUD-HK	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	8781
2	China	3330
3	Singapore	841
4	France	580
5	Indonesia	393
6	Hong Kong	379
7	Netherlands	375
8	India	302
9	Russian Federation	281
10	United Kingdom	266

Thursday, April 23, 2026

Botnet Statistics [2026-04-22]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-22 00:00-23:59 UTC
total number of suspected botnet IPs: 18829
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 17676
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	345085
2	1599	83037
3	8000	76103
4	2232	69911
5	3128	65979
6	8082	65939
7	7777	62047
8	5408	56980
9	5627	51494
10	21293	44442

Rank	Network	# of suspected botnet IPs
1	AL-3	1461
2	MSFT	1341
3	GOOGLE-CLOUD	1016
4	PAN-22	950
5	ASEPL-SG	464
6	FR-ONYPHE-20191111	448
7	CENSY	380
8	VOLCANO-ENGINE	323
9	cloud	304
10	UCLOUD-HK	272

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	8366
2	China	3459
3	Singapore	779
4	France	596
5	Indonesia	427
6	Hong Kong	398
7	Netherlands	381
8	India	329
9	Germany	321
10	Russian Federation	298

Wednesday, April 22, 2026

Botnet Statistics [2026-04-21]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-21 00:00-23:59 UTC
total number of suspected botnet IPs: 20123
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18939
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	280551
2	2232	69873
3	9051	65654
4	7777	49464
5	8082	48367
6	8000	46453
7	8088	28007
8	2109	25745
9	8081	25081
10	2511	24240

Rank	Network	# of suspected botnet IPs
1	AL-3	1592
2	MSFT	1406
3	GOOGLE-CLOUD	1009
4	PAN-22	950
5	ASEPL-SG	561
6	FR-ONYPHE-20191111	448
7	VOLCANO-ENGINE	393
8	CENSY	366
9	cloud	331
10	UCLOUD-HK	273

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	9327
2	China	3396
3	Singapore	859
4	France	613
5	Indonesia	483
6	Netherlands	451
7	Hong Kong	405
8	India	389
9	Germany	335
10	Russian Federation	308

Tuesday, April 21, 2026

Botnet Statistics [2026-04-20]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-20 00:00-23:59 UTC
total number of suspected botnet IPs: 17161
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15971
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	373637
2	2232	75172
3	4157	52271
4	2288	50693
5	3098	43832
6	9051	37750
7	8000	36095
8	7777	33120
9	8082	32861
10	2509	30024

Rank	Network	# of suspected botnet IPs
1	AL-3	1480
2	MSFT	1375
3	GOOGLE-CLOUD	1018
4	PAN-22	950
5	ASEPL-SG	469
6	FR-ONYPHE-20191111	448
7	CENSY	381
8	VOLCANO-ENGINE	352
9	UCLOUD-HK	268
10	FR-ONYPHE-20221109	240

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	8030
2	China	3028
3	Singapore	747
4	France	559
5	Netherlands	410
6	Hong Kong	362
7	India	299
8	Indonesia	290
9	United Kingdom	242
10	Russian Federation	240

Monday, April 20, 2026

Botnet Statistics [2026-04-19]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-19 00:00-23:59 UTC
total number of suspected botnet IPs: 17119
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16137
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	324826
2	8473	105547
3	6085	96090
4	5106	79927
5	7697	78305
6	2232	75409
7	3098	72963
8	25002	69242
9	667	65996
10	2288	62137

Rank	Network	# of suspected botnet IPs
1	AL-3	1463
2	MSFT	1376
3	GOOGLE-CLOUD	1002
4	PAN-22	950
5	ASEPL-SG	489
6	FR-ONYPHE-20191111	448
7	CENSY	381
8	VOLCANO-ENGINE	345
9	cloud	310
10	UCLOUD-HK	256

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	8533
2	China	2896
3	Singapore	800
4	France	590
5	Netherlands	385
6	Hong Kong	345
7	Germany	253
8	United Kingdom	250
9	India	233
10	Russian Federation	217

Sunday, April 19, 2026

Botnet Statistics [2026-04-18]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-18 00:00-23:59 UTC
total number of suspected botnet IPs: 16828
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15826
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	249425
2	25002	103579
3	2232	72918
4	2222	71187
5	6022	65771
6	2095	65198
7	2020	62177
8	9443	61318
9	2083	61264
10	2288	60761

Rank	Network	# of suspected botnet IPs
1	AL-3	1509
2	MSFT	1403
3	GOOGLE-CLOUD	1017
4	PAN-22	950
5	ASEPL-SG	490
6	FR-ONYPHE-20191111	447
7	CENSY	379
8	VOLCANO-ENGINE	344
9	cloud	320
10	UCLOUD-HK	251

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	8149
2	China	3009
3	Singapore	781
4	France	556
5	Netherlands	388
6	Hong Kong	346
7	Germany	290
8	India	254
9	Indonesia	246
10	United Kingdom	227

Saturday, April 18, 2026

Botnet Statistics [2026-04-17]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-17 00:00-23:59 UTC
total number of suspected botnet IPs: 17754
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16748
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	259718
2	2095	172823
3	2222	134768
4	25002	104111
5	2232	75862
6	6022	67848
7	2020	65393
8	2288	62816
9	2083	61961
10	9088	55199

Rank	Network	# of suspected botnet IPs
1	AL-3	1514
2	MSFT	1391
3	GOOGLE-CLOUD	998
4	PAN-22	950
5	ASEPL-SG	485
6	FR-ONYPHE-20191111	448
7	CENSY	371
8	VOLCANO-ENGINE	350
9	cloud	287
10	UCLOUD-HK	264

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	8071
2	China	3888
3	Singapore	783
4	France	545
5	Netherlands	380
6	Hong Kong	363
7	Indonesia	272
8	India	270
9	Russian Federation	256
10	United Kingdom	235

Friday, April 17, 2026

Botnet Statistics [2026-04-16]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-16 00:00-23:59 UTC
total number of suspected botnet IPs: 19067
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 18077
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	323673
2	25002	86046
3	2232	81004
4	6022	66146
5	10017	65188
6	2288	62914
7	2222	62611
8	2185	61707
9	2020	60505
10	1470	58828

Rank	Network	# of suspected botnet IPs
1	MSFT	1368
2	AL-3	1367
3	GOOGLE-CLOUD	1009
4	PAN-22	951
5	FR-ONYPHE-20191111	448
6	ASEPL-SG	428
7	CENSY	367
8	VOLCANO-ENGINE	343
9	cloud	328
10	UCLOUD-HK	252

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	8485
2	China	4678
3	Singapore	763
4	France	603
5	Netherlands	360
6	Hong Kong	351
7	Indonesia	279
8	India	276
9	Russian Federation	251
10	Germany	251

Thursday, April 16, 2026

Botnet Statistics [2026-04-15]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-15 00:00-23:59 UTC
total number of suspected botnet IPs: 16139
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15135
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	355592
2	2222	115091
3	7777	106000
4	8085	94842
5	9110	86223
6	2232	81571
7	23401	68250
8	2288	63004
9	992	57187
10	5431	54939

Rank	Network	# of suspected botnet IPs
1	MSFT	1386
2	GOOGLE-CLOUD	1003
3	PAN-22	950
4	AL-3	891
5	FR-ONYPHE-20191111	448
6	CENSY	372
7	VOLCANO-ENGINE	355
8	cloud	332
9	ASEPL-SG	267
10	UCLOUD-HK	250

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	7677
2	China	3003
3	France	587
4	Singapore	491
5	Hong Kong	357
6	Netherlands	343
7	Indonesia	280
8	India	260
9	Viet Nam	238
10	United Kingdom	235

Wednesday, April 15, 2026

Botnet Statistics [2026-04-14]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-14 00:00-23:59 UTC
total number of suspected botnet IPs: 17455
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16757
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	7777	411683
2	8015	330945
3	5900	298423
4	9443	297709
5	2095	246598
6	2222	171490
7	5357	115521
8	8000	86595
9	8085	83589
10	2232	78208

Rank	Network	# of suspected botnet IPs
1	MSFT	1379
2	GOOGLE-CLOUD	1002
3	PAN-22	950
4	AL-3	925
5	FR-ONYPHE-20191111	448
6	CENSY	377
7	VOLCANO-ENGINE	351
8	ASEPL-SG	292
9	cloud	290
10	UCLOUD-HK	256

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	8225
2	China	3397
3	France	552
4	Singapore	506
5	Hong Kong	372
6	Netherlands	360
7	Germany	307
8	Indonesia	293
9	United Kingdom	268
10	Viet Nam	254

Tuesday, April 14, 2026

Botnet Statistics [2026-04-13]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-13 00:00-23:59 UTC
total number of suspected botnet IPs: 17557
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16838
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	7777	489497
2	5900	305280
3	9443	238549
4	8015	238146
5	2095	191655
6	2222	116843
7	8082	105349
8	25	102724
9	8000	79587
10	2232	76403

Rank	Network	# of suspected botnet IPs
1	MSFT	1391
2	AL-3	1148
3	GOOGLE-CLOUD	1004
4	PAN-22	950
5	FR-ONYPHE-20191111	448
6	CENSY	379
7	VOLCANO-ENGINE	360
8	cloud	340
9	ASEPL-SG	313
10	UCLOUD-HK	258

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	7884
2	China	3904
3	Singapore	640
4	France	550
5	Hong Kong	361
6	Netherlands	338
7	Indonesia	301
8	India	288
9	Russian Federation	258
10	United Kingdom	246

Monday, April 13, 2026

Botnet Statistics [2026-04-12]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-12 00:00-23:59 UTC
total number of suspected botnet IPs: 17959
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16880
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	346775
2	7777	157905
3	2095	142649
4	9443	106940
5	5901	68145
6	2288	62980
7	2206	62242
8	2222	58353
9	4322	56679
10	2232	55898

Rank	Network	# of suspected botnet IPs
1	MSFT	1392
2	AL-3	1315
3	GOOGLE-CLOUD	1007
4	PAN-22	949
5	ASEPL-SG	450
6	FR-ONYPHE-20191111	448
7	CENSY	381
8	VOLCANO-ENGINE	365
9	UCLOUD-HK	253
10	AT-88-Z	247

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	8754
2	China	3627
3	Singapore	678
4	France	553
5	Germany	380
6	Netherlands	378
7	Hong Kong	352
8	Indonesia	226
9	United Kingdom	214
10	South Korea	211

Sunday, April 12, 2026

Botnet Statistics [2026-04-11]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-11 00:00-23:59 UTC
total number of suspected botnet IPs: 16854
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15984
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	403081
2	51005	189328
3	2078	153670
4	2095	82307
5	7777	76612
6	2222	74474
7	2288	64073
8	8015	62307
9	2206	62013
10	6022	61801

Rank	Network	# of suspected botnet IPs
1	MSFT	1366
2	AL-3	1282
3	GOOGLE-CLOUD	1004
4	PAN-22	950
5	ASEPL-SG	479
6	FR-ONYPHE-20191111	448
7	VOLCANO-ENGINE	375
8	CENSY	375
9	cloud	327
10	UCLOUD-HK	259

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	7855
2	China	3567
3	Singapore	831
4	France	542
5	Germany	375
6	Hong Kong	354
7	Netherlands	348
8	Indonesia	249
9	United Kingdom	226
10	South Korea	217

Saturday, April 11, 2026

Botnet Statistics [2026-04-10]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-10 00:00-23:59 UTC
total number of suspected botnet IPs: 17575
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 16680
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	424324
2	888	306750
3	51005	208858
4	8088	137190
5	2078	118368
6	5357	93142
7	2288	63120
8	7777	61224
9	2206	61191
10	2222	52601

Rank	Network	# of suspected botnet IPs
1	MSFT	1393
2	AL-3	1388
3	GOOGLE-CLOUD	1000
4	PAN-22	950
5	ASEPL-SG	480
6	FR-ONYPHE-20191111	448
7	CENSY	380
8	VOLCANO-ENGINE	370
9	cloud	338
10	UCLOUD-HK	268

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	8231
2	China	3793
3	Singapore	804
4	France	544
5	Hong Kong	372
6	Netherlands	361
7	Germany	275
8	Indonesia	255
9	United Kingdom	249
10	India	216

Friday, April 10, 2026

Botnet Statistics [2026-04-09]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-09 00:00-23:59 UTC
total number of suspected botnet IPs: 16893
number of botnet IPs notified to network operators (best case, if all mail were sent out successfully): 15969
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	517780
2	888	192702
3	4222	106156
4	51005	105279
5	8088	89904
6	2078	66807
7	8085	66538
8	2288	63358
9	2231	61086
10	5357	60994

Rank	Network	# of suspected botnet IPs
1	MSFT	1355
2	GOOGLE-CLOUD	1008
3	PAN-22	950
4	AL-3	927
5	FR-ONYPHE-20191111	448
6	CENSY	377
7	VOLCANO-ENGINE	371
8	ASEPL-SG	368
9	cloud	308
10	UCLOUD-HK	262

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	8125
2	China	3126
3	Singapore	649
4	France	562
5	Netherlands	413
6	Hong Kong	362
7	Indonesia	269
8	South Korea	240
9	India	231
10	United Kingdom	230

Thursday, April 9, 2026

Botnet Statistics [2026-04-08]

(To download the latest zombie ip list, please visit the Daily Zombie IP Lists for April 2026.
detection period: 2026-04-08 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): 16140
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	535292
2	5357	151774
3	888	112720
4	4222	106771
5	8088	100730
6	8085	72132
7	9443	69783
8	2078	61845
9	8000	59818
10	2231	59327

Rank	Network	# of suspected botnet IPs
1	MSFT	1387
2	AL-3	1251
3	GOOGLE-CLOUD	1005
4	PAN-22	950
5	ASEPL-SG	514
6	FR-ONYPHE-20191111	448
7	CENSY	378
8	VOLCANO-ENGINE	377
9	cloud	322
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:

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

Rank	Country/Region	# of suspected botnet IPs
1	United States	7707
2	China	3716
3	Singapore	762
4	France	555
5	Netherlands	371
6	Hong Kong	360
7	Indonesia	281
8	South Korea	227
9	United Kingdom	224
10	India	211

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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	496622
2	8088	148239
3	4222	110715
4	5357	76138
5	2095	68995
6	2078	67603
7	51005	57728
8	8085	56508
9	2231	55837
10	9022	44702