TCP SYN (p0f)

4:114+14:0:1452:65535,8:mss,nop,ws,sok,ts:df,id+:0

first seen 2026-07-18 08:25 · last seen 2026-07-18 08:25 · JSON

Decomposed attributes

IP version4
Initial TTL114+14
Options length0
MSS1452
Window size65535
Window scale8
Options layoutmss,nop,ws,sok,ts
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
t12d1515h2_8daaf6152771_4d8a99c1bc011

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr09zhcn_4886f2cdeb15_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;3:1000;4:6291456;5:16384;6:262144|15663105|0|m,a,s,p1

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-4-8_1452_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
CN · China1

Network (ASN)

fingerprintco-occurrences
AS4134 · CHINANET BACKBONE1