TCP SYN (JA4T)

65535_2-4-8-1-3_1418_8

first seen 2026-09-01 01:09 · last seen 2026-09-27 19:34 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1418
Window scale8

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_0a20fe35d3a53

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn14enus_4a2973d235de_000000000000_0000000000003

TCP SYN (p0f)

fingerprintco-occurrences
4:45+19:0:1418:65535,8:mss,sok,ts,nop,ws:df,id+:02
4:49+15:0:1418:65535,8: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/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States1
PL · Poland1
KZ · Kazakhstan1

Network (ASN)

fingerprintco-occurrences
AS5650 · Verizon Business1
AS21299 · Kar-Tel LLC1
AS198401 · Geckonet Sp. z o. o.1