TCP SYN (p0f)

4:42+22:0:1360:mss*44,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-09-08 20:59 · last seen 2026-09-08 20:59 · JSON

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL42+22
Options length0
MSS1360
Window sizemss*44
Window scale7
Options layoutmss,sok,ts,nop,ws
Quirksdf,id+
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
t13d3514h1_bfa337485184_990ad2f8d6931

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_444220f7ef68_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1360_71

User-Agent

fingerprintco-occurrences
Python/3.9 aiohttp/3.13.31

Country

fingerprintco-occurrences
KR · South Korea1

Network (ASN)

fingerprintco-occurrences
AS3786 · LG DACOM Corporation1