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 2026/06/15

Number of unique hosts by country

country Hosts Percentage
China(CN) 72,449
 
39%
United States(US) 20,566
 
11%
Brazil(BR) 10,951
 
6%
Pakistan(PK) 7,544
 
4%
India(IN) 7,221
 
4%
Russian Federation(RU) 4,352
 
2%
Great Britain(United Kingdom)(GB) 3,614
 
2%
Indonesia(ID) 3,108
 
2%
Mexico(MX) 2,898
 
2%
Iran (Islamic Republic Of)(IR) 2,715
 
1%

Number of unique hosts by TCP dst port

Dst Port Hosts Percentage
23 42,138
 
< 1%
445 27,573
 
< 1%
80 25,470
 
< 1%
8080 20,953
 
< 1%
443 15,742
 
< 1%
8443 13,482
 
< 1%
2323 12,549
 
< 1%
8081 11,614
 
< 1%
22 11,387
 
< 1%
10000 10,384
 
< 1%

Number of unique hosts by UDP dst port

Dst Port Hosts Percentage
8567 6,855
 
< 1%
5060 5,667
 
< 1%
161 4,254
 
< 1%
123 3,783
 
< 1%
53 3,753
 
< 1%
1434 3,540
 
< 1%
443 3,377
 
< 1%
27015 3,127
 
< 1%
1194 3,089
 
< 1%
5632 2,985
 
< 1%

Number of packets by country

Packets Percentage
United States(US) 66,075,006
 
27%
Bulgaria(BG) 39,300,675
 
16%
Seychelles(SC) 31,420,956
 
13%
Great Britain(United Kingdom)(GB) 29,599,634
 
12%
Romania(RO) 19,694,757
 
8%
Germany(DE) 9,861,877
 
4%
China(CN) 6,100,069
 
3%
Netherlands(NL) 4,862,316
 
2%
France(FR) 2,938,864
 
1%
Hong Kong(HK) 2,856,901
 
1%

Number of packets by TCP dst port

Dst Port Packets Percentage
23 23,027,053
 
10%
80 2,480,952
 
1%
443 2,405,979
 
1%
22 1,648,702
 
1%
3389 1,379,982
 
1%
8080 1,304,541
 
1%
17000 981,524
 
< 1%
1433 919,873
 
< 1%
5555 860,800
 
< 1%
445 773,861
 
< 1%

Number of packets by UDP dst port

Dst Port Packets Percentage
27015 845,018
 
7%
5060 538,525
 
5%
161 312,467
 
3%
53 308,405
 
3%
123 233,390
 
2%
389 220,963
 
2%
1900 198,817
 
2%
5353 150,032
 
1%
1434 135,960
 
1%
3478 134,185
 
1%

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