TCP SYN (p0f)

4:50+14:0:1424:mss*44,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 16:33 · last seen 2026-07-02 00:16 · JSON

Decomposed attributes

IP version4
Initial TTL50+14
Options length0
MSS1424
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
t13d3112h1_e8f1e7e78f70_d41ae481755e1
t13d3613h1_018971650b2c_804a9bcfcd4d1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000001
ge11nn050000_be0d0b335e46_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1424_72

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0 Safari/537.361
AICUIScout/0.1 (+https://example.local; product research)1

Country

fingerprintco-occurrences
DE · Germany1
JP · Japan1

Network (ASN)

fingerprintco-occurrences
AS132203 · Tencent Building, Kejizhongyi Avenue2