WHAT’S NICTER ?

Incident analysis center NICTER (Network Incident analysis Center for Tactical Emergency Response) is an integration of large-scale networking monitoring and analysis of cyber threats such as botnet or DDoS. Since 2005, NICTER has collaborated with numerous organizations both in Japan and overseas to distribute sensors to monitor darknet in real-time. A darknet is a set of globally announced unused IP addresses. Because there is no computer connected to the darknet, communication (packets) should not actually arrive under the normal usage of the internet. However, in reality, a large amount of packets arrives darknet: scan packets from a computer infected with malware searching for the next infection destination, spoofed packets bouncing back from a server to darknet (called backscatter), or internet-wide scan packets from those research organizations collecting data about internet-connected hosts and their open ports or services running etc. Observing and analysing such network traffic arriving at darknet guide us to the identification of new threats or unknown behavior of botnets which is one of the mission of NICTER's darknet observation.

Atlas

In Atlas, packets that reach the darknet are animated on the world map based on country, port numbers, and protocol information associated with the source and destination IP addresses.

Cube

Cube visualizes packets arriving at NICTER's darknet in a three-dimensional space, based on information about its source and destination IP address.
 

Stats visualizes time series data of NICTER's darknet traffic (hosts and packets) in a specified period and unit time (5 minutes, 1 hour, 1 day).

In the top 10 list, you can display the top 10 countriese and ports for the specified day. You can go back up to 3 months.
Date of 2026/06/23

Number of unique hosts by country

country Hosts Percentage
China(CN) 69,967
 
42%
United States(US) 21,885
 
13%
Pakistan(PK) 7,268
 
4%
Brazil(BR) 7,227
 
4%
India(IN) 5,711
 
3%
Russian Federation(RU) 4,188
 
3%
Egypt(EG) 2,941
 
2%
Mexico(MX) 2,609
 
2%
Great Britain(United Kingdom)(GB) 2,399
 
1%
Indonesia(ID) 2,373
 
1%

Number of unique hosts by TCP dst port

Dst Port Hosts Percentage
23 32,249
 
< 1%
80 25,753
 
< 1%
8080 22,832
 
< 1%
445 22,750
 
< 1%
8443 15,560
 
< 1%
443 15,294
 
< 1%
2323 13,421
 
< 1%
8081 12,911
 
< 1%
5555 12,832
 
< 1%
22 12,356
 
< 1%

Number of unique hosts by UDP dst port

Dst Port Hosts Percentage
8568 5,735
 
< 1%
161 5,434
 
< 1%
5060 5,106
 
< 1%
5353 4,170
 
< 1%
6881 4,096
 
< 1%
1900 3,989
 
< 1%
500 3,918
 
< 1%
53 3,836
 
< 1%
1434 3,563
 
< 1%
1194 3,009
 
< 1%

Number of packets by country

Packets Percentage
United States(US) 63,816,491
 
29%
Bulgaria(BG) 38,772,309
 
18%
Romania(RO) 35,916,825
 
16%
Great Britain(United Kingdom)(GB) 28,219,106
 
13%
Germany(DE) 8,985,806
 
4%
Seychelles(SC) 5,879,925
 
3%
China(CN) 5,606,078
 
3%
Netherlands(NL) 5,439,561
 
2%
Singapore(SG) 2,776,425
 
1%
France(FR) 2,342,872
 
1%

Number of packets by TCP dst port

Dst Port Packets Percentage
23 20,534,843
 
10%
80 1,964,332
 
1%
443 1,828,627
 
1%
3389 1,573,660
 
1%
22 1,561,108
 
1%
5555 1,268,061
 
1%
8080 1,200,949
 
1%
1433 894,184
 
< 1%
17000 758,489
 
< 1%
2222 753,768
 
< 1%

Number of packets by UDP dst port

Dst Port Packets Percentage
27015 704,498
 
7%
5060 636,638
 
6%
161 362,554
 
3%
53 290,754
 
3%
1900 214,984
 
2%
123 205,147
 
2%
5683 150,226
 
1%
1434 140,296
 
1%
500 132,221
 
1%
389 131,383
 
1%

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