TCP SYN (p0f)

4:38+26:0:1436:mss*44,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-18 14:30 · last seen 2026-06-18 14:30 · JSON

Decomposed attributes

IP version4
Initial TTL38+26
Options length0
MSS1436
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
t13d131100_f57a46bbacb6_e5728521abd44

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr15enus_fd490b47b511_000000000000_0000000000004

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.2210.1441
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.151
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 Edg/121.0.2277.1121

Country

fingerprintco-occurrences
NL · Netherlands4

Network (ASN)

fingerprintco-occurrences
AS202412 · Omegatech LTD4