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 2026/05/06

Number of unique hosts by country

country Hosts Percentage
China(CN) 93,610
 
17%
India(IN) 79,070
 
14%
United States(US) 42,401
 
8%
Brazil(BR) 35,525
 
6%
Mexico(MX) 20,505
 
4%
Philippines(PH) 16,339
 
3%
Bangladesh(BD) 12,797
 
2%
Argentina(AR) 12,561
 
2%
Russian Federation(RU) 11,606
 
2%
South Africa(ZA) 11,516
 
2%

Number of unique hosts by TCP dst port

Dst Port Hosts Percentage
23 378,515
 
2%
2323 133,860
 
1%
445 25,353
 
< 1%
80 23,752
 
< 1%
8080 21,641
 
< 1%
443 13,951
 
< 1%
8443 13,889
 
< 1%
8081 12,348
 
< 1%
5555 11,951
 
< 1%
8888 10,243
 
< 1%

Number of unique hosts by UDP dst port

Dst Port Hosts Percentage
28571 14,178
 
1%
5060 5,202
 
< 1%
8567 4,955
 
< 1%
161 4,927
 
< 1%
53038 3,957
 
< 1%
1434 3,820
 
< 1%
123 3,683
 
< 1%
1900 3,645
 
< 1%
500 3,618
 
< 1%
1194 3,562
 
< 1%

Number of packets by country

Packets Percentage
United States(US) 90,938,725
 
34%
Bulgaria(BG) 37,692,729
 
14%
Great Britain(United Kingdom)(GB) 29,790,280
 
11%
Germany(DE) 18,287,055
 
7%
Romania(RO) 9,144,459
 
3%
Seychelles(SC) 8,633,409
 
3%
France(FR) 6,365,848
 
2%
China(CN) 5,880,054
 
2%
Netherlands(NL) 5,203,537
 
2%
Canada(CA) 5,008,656
 
2%

Number of packets by TCP dst port

Dst Port Packets Percentage
23 96,439,611
 
38%
443 3,104,620
 
1%
80 2,128,519
 
1%
22 1,877,881
 
1%
5555 1,487,857
 
1%
3389 1,366,536
 
1%
8080 1,125,121
 
< 1%
2222 814,710
 
< 1%
445 612,561
 
< 1%
8443 526,605
 
< 1%

Number of packets by UDP dst port

Dst Port Packets Percentage
5060 569,366
 
6%
1900 295,581
 
3%
53 291,978
 
3%
161 254,334
 
3%
123 236,106
 
2%
1434 205,563
 
2%
5353 138,832
 
1%
3702 137,701
 
1%
389 136,202
 
1%
3478 124,665
 
1%

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