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 2026/07/30

Number of unique hosts by country

country Hosts Percentage
China(CN) 63,192
 
24%
Brazil(BR) 30,739
 
11%
United States(US) 26,915
 
10%
India(IN) 12,841
 
5%
Russian Federation(RU) 12,014
 
4%
Ukraine(UA) 10,926
 
4%
Pakistan(PK) 10,808
 
4%
Bangladesh(BD) 6,541
 
2%
Mexico(MX) 5,730
 
2%
Argentina(AR) 5,230
 
2%

Number of unique hosts by TCP dst port

Dst Port Hosts Percentage
23 101,383
 
< 1%
80 26,900
 
< 1%
445 25,609
 
< 1%
8080 24,689
 
< 1%
443 18,452
 
< 1%
2323 16,272
 
< 1%
22 16,134
 
< 1%
8443 15,164
 
< 1%
3389 14,345
 
< 1%
3306 13,854
 
< 1%

Number of unique hosts by UDP dst port

Dst Port Hosts Percentage
5060 6,650
 
< 1%
53 6,294
 
< 1%
443 4,807
 
< 1%
500 4,557
 
< 1%
161 4,298
 
< 1%
123 3,234
 
< 1%
1434 3,104
 
< 1%
80 2,951
 
< 1%
5353 2,692
 
< 1%
1900 2,601
 
< 1%

Number of packets by country

Packets Percentage
United States(US) 58,248,891
 
27%
Bulgaria(BG) 58,200,670
 
27%
Great Britain(United Kingdom)(GB) 27,348,119
 
13%
Ukraine(UA) 15,423,272
 
7%
Germany(DE) 7,347,285
 
3%
Seychelles(SC) 5,219,838
 
2%
China(CN) 4,929,426
 
2%
Netherlands(NL) 4,815,147
 
2%
United Arab Emirates(AE) 4,213,412
 
2%
Singapore(SG) 2,663,221
 
1%

Number of packets by TCP dst port

Dst Port Packets Percentage
23 17,712,537
 
9%
22 2,199,713
 
1%
443 1,820,962
 
1%
80 1,754,946
 
1%
3389 1,532,896
 
1%
8080 1,230,670
 
1%
5555 1,226,436
 
1%
2222 626,339
 
< 1%
3306 608,186
 
< 1%
445 603,186
 
< 1%

Number of packets by UDP dst port

Dst Port Packets Percentage
5060 557,460
 
5%
53 542,540
 
5%
123 435,641
 
4%
161 290,114
 
2%
1900 268,001
 
2%
27015 206,051
 
2%
1434 196,043
 
2%
389 169,899
 
1%
500 138,746
 
1%
3702 134,976
 
1%

Copyright © National Institute of Information and Communications Technology. All Rights Reserved.