TCP SYN (p0f)

4:49+15:0:1340:mss*44,9:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-01 18:45 · last seen 2026-07-01 18:45 · JSON

Decomposed attributes

IP version4
Initial TTL49+15
Options length0
MSS1340
Window sizemss*44
Window scale9
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
t13d3012h1_1d37bd780c83_882d495ac3815

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_87168a890fb9_000000000000_0000000000005

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1340_95

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.01
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.361
Mozilla/5.0 (iPhone; CPU iPhone OS 16_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/604.11
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.151

Country

fingerprintco-occurrences
SE · Sweden5

Network (ASN)

fingerprintco-occurrences
AS39351 · 31173 Services AB5