TCP SYN (JA4T)

64240_2-4-8-1-3_1408_1

first seen 2026-09-04 09:33 · last seen 2026-09-08 00:27 · JSON

Decomposed attributes

TCP window64240
Option kinds2-4-8-1-3
MSS1408
Window scale1

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
t13d1515h1_8daaf6152771_0a20fe35d3a52

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000001
ge11nn14enus_4a2973d235de_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:46+18:0:1408:mss*44,1:mss,sok,ts,nop,ws:df,id+:01
4:36+28:0:1408:mss*44,1:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361
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
BR · Brazil2

Network (ASN)

fingerprintco-occurrences
AS269529 · GMX PROVEDOR DE INTERNET SERVICOS E LOCACOES LTDA1
AS270257 · NETFSA BANDA LARGA1