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 2026/06/12

Number of unique hosts by country

country Hosts Percentage
China(CN) 76,864
 
40%
United States(US) 21,474
 
11%
Brazil(BR) 12,449
 
6%
Pakistan(PK) 7,393
 
4%
India(IN) 7,043
 
4%
Russian Federation(RU) 3,623
 
2%
Mexico(MX) 3,251
 
2%
Great Britain(United Kingdom)(GB) 3,190
 
2%
Indonesia(ID) 2,916
 
2%
Argentina(AR) 2,588
 
1%

Number of unique hosts by TCP dst port

Dst Port Hosts Percentage
23 45,406
 
< 1%
445 24,543
 
< 1%
80 22,996
 
< 1%
8080 21,698
 
< 1%
443 14,067
 
< 1%
8443 13,288
 
< 1%
2323 13,001
 
< 1%
8081 10,941
 
< 1%
5555 10,903
 
< 1%
22 10,186
 
< 1%

Number of unique hosts by UDP dst port

Dst Port Hosts Percentage
8567 6,473
 
< 1%
5060 6,063
 
< 1%
53 4,647
 
< 1%
500 4,387
 
< 1%
123 3,993
 
< 1%
161 3,850
 
< 1%
27015 3,630
 
< 1%
1434 3,253
 
< 1%
1194 3,200
 
< 1%
1900 2,945
 
< 1%

Number of packets by country

Packets Percentage
United States(US) 80,553,155
 
30%
Bulgaria(BG) 70,391,866
 
27%
Great Britain(United Kingdom)(GB) 27,554,309
 
10%
Romania(RO) 21,851,131
 
8%
Germany(DE) 10,956,232
 
4%
Netherlands(NL) 7,713,290
 
3%
China(CN) 6,625,789
 
2%
Seychelles(SC) 5,227,697
 
2%
France(FR) 4,825,305
 
2%
Hong Kong(HK) 3,161,330
 
1%

Number of packets by TCP dst port

Dst Port Packets Percentage
23 23,957,904
 
10%
80 1,981,946
 
1%
443 1,957,189
 
1%
22 1,598,096
 
1%
3389 1,530,085
 
1%
8080 1,079,259
 
< 1%
5555 911,802
 
< 1%
1433 801,944
 
< 1%
2222 717,623
 
< 1%
5900 663,035
 
< 1%

Number of packets by UDP dst port

Dst Port Packets Percentage
27015 1,136,263
 
9%
5060 666,891
 
5%
53 345,283
 
3%
123 249,769
 
2%
161 247,525
 
2%
389 185,743
 
1%
1900 182,604
 
1%
3702 168,290
 
1%
11211 162,555
 
1%
5353 146,784
 
1%

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