TCP SYN (JA4T)

65535_2-4-8-1-3_1380_11

first seen 2026-09-02 06:31 · last seen 2026-09-02 06:31 · JSON

Decomposed attributes

TCP window65535
Option kinds2-4-8-1-3
MSS1380
Window scale11

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
t13d131100_f57a46bbacb6_e5728521abd41

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr030000_cd680697de12_000000000000_0000000000001

TCP SYN (p0f)

fingerprintco-occurrences
4:44+20:0:1380:65535,11:mss,sok,ts,nop,ws:df,id+:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
CA · Canada1

Network (ASN)

fingerprintco-occurrences
AS174 · Cogent Communications, LLC1