TCP SYN (JA4T)

65535_2-4-8-1-3_1318_9

first seen 2026-08-30 11:11 · last seen 2026-09-04 17:23 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1318
Window scale9

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_de4a06bb82e32

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000002

TCP SYN (p0f)

fingerprintco-occurrences
4:45+19:0:1318:65535,9:mss,sok,ts,nop,ws:df,id+:01
4:53+11:0:1318:65535,9:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
ES · Spain1
HR · Croatia1

Network (ASN)

fingerprintco-occurrences
AS12430 · VODAFONE ESPANA S.A.U.1
AS205714 · Telemach Hrvatska d.o.o.1