TCP SYN (JA4T)

64240_2-4-8-1-3_1380_1

first seen 2026-08-26 11:00 · last seen 2026-09-28 03:39 · JSON

Decomposed attributes

TCP window64240
Option kinds2-4-8-1-3
MSS1380
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_de4a06bb82e32
t13d1515h1_8daaf6152771_0a20fe35d3a51

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000002
ge11nn14enus_4a2973d235de_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:40+24:0:1380:mss*44,1:mss,sok,ts,nop,ws:df,id+:01
4:46+18:0:1380:mss*44,1:mss,sok,ts,nop,ws:df,id+:01
4:37+27:0:1380: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/136.0.0.0 Safari/537.361
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
IN · India1
KE · Kenya1
CO · Colombia1

Network (ASN)

fingerprintco-occurrences
AS33771 · Safaricom Limited1
AS26611 · COMUNICACIÓN CELULAR S.A. COMCEL S.A.1
AS45271 · Vodafone Idea Ltd1