TCP SYN (JA4T)

42340_2-1-1-4-1-3_1460_12

first seen 2026-07-05 18:05 · last seen 2026-08-30 13:56 · JSON

Decomposed attributes

TCP window42340
Option kinds2-1-1-4-1-3
MSS1460
Window scale12

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
t13d1516h2_8daaf6152771_eeeea65629604
t13d1516h1_8daaf6152771_1a63afa7c4781

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr13enus_dee81a311bfc_000000000000_0000000000002
ge11nn13enus_9db22d02e17a_000000000000_0000000000001
ge20nn13enus_dee81a311bfc_000000000000_0000000000001
ge20nn12enus_1da1240e68f4_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:42|m,p,a,s1
1:4096;2:0;4:32768;5:16384|12517377|5:0:0:42|m,p,a,s1
1:4096;2:0;4:32768;5:16384|12517377|9:0:0:42|m,p,a,s1
1:4096;2:0;4:32768;5:16384|12517377|7:0:0:42|m,p,a,s1

TCP SYN (p0f)

fingerprintco-occurrences
4:52+12:0:1460:mss*29,12:mss,nop,nop,sok,nop,ws:df,id+,ecn:04
4:42+22:0:1460:mss*29,12:mss,nop,nop,sok,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Android 16; Mobile; rv:154.0) Gecko/154.0 Firefox/154.04
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
FI · Finland4
CN · China1

Network (ASN)

fingerprintco-occurrences
AS50053 · VDSka hosting4
AS23724 · IDC, China Telecommunications Corporation1