Network (ASN)

AS41378

first seen 2026-07-20 23:08 · last seen 2026-10-28 06:15 · JSON

Last 7 days (21 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Network nameKirino LLC
Domainas41378.net

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1611h2_1711a4c0508c_6d021c4c45cd21
t13d871100_c66346c74e42_24695f2957a72
t13d201100_2b729b4bf6f3_36bf25f296df1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr14enus_ff5cb1f26f52_000000000000_0000000000006
ge20nr14enus_a725ed712cd5_000000000000_0000000000006
ge20nr14enus_8bdf938ab49f_000000000000_0000000000004
ge20nr13enus_9093f0c7a28b_000000000000_0000000000003
ge11nn16enus_7a2bab1d33b1_000000000000_0000000000002
ge11nn040000_cabeb744284e_000000000000_0000000000001
ge20nn14enus_ff5cb1f26f52_000000000000_0000000000001
ge20nr14enus_00032babe3a5_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
2:0;6:262144|10485760|0|m,a,s,p21

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:9174:65535,10:mss,sok,ts,nop,ws:df,id+:012
4:46+18:0:9174:65535,10:mss,sok,ts,nop,ws:df,id+:09
4:50+14:0:1460:65535,10:mss,sok,ts,nop,ws:df,id+:01
4:50+14:0:1400:mss*44,11:mss,sok,ts,nop,ws:df,id+:01
4:49+15:0:1400:mss*44,11:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_9174_1021
64240_2-4-8-1-3_1400_112
65535_2-4-8-1-3_1460_101

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.021
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:142.0) Gecko/20100101 Firefox/142.01

Country

fingerprintco-occurrences
HK · Hong Kong SAR China21
DE · Germany2
SG · Singapore1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018 Match?Exact match in Thumbprint's published controlled catalog captures: chrome 156.0.8078.48, edge 155.0.4283.62, chrome 156.0.8078.47, +11 more.The fingerprint page shows the full measured match list. More on the catalog.21