TCP SYN (p0f)

4:109+19:0:1436:mss*45,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-30 09:28 · last seen 2026-08-12 16:32 · JSON

Decomposed attributes

IP version4
Initial TTL109+19
Options length0
MSS1436
Window sizemss*45
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
Payload class0

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
t13d131000_f57a46bbacb6_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.23.12.The fingerprint page shows the full measured match list. More on the catalog.2
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn010000_4a823118b9ba_000000000000_0000000000001
ge11nr08engb_aea191eebe67_000000000000_0000000000001
ge11nr06enus_aeac3047b50b_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64620_2-1-3-1-1-4_1436_83

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.361
Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.11

Country

fingerprintco-occurrences
LU · Luxembourg3

Network (ASN)

fingerprintco-occurrences
AS205759 · Ghosty Networks LLC3