TCP SYN (p0f)

4:44+20:0:1456:65535,6:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-08-21 17:42 · last seen 2026-09-04 05:40 · JSON

Decomposed attributes

IP version4
Initial TTL44+20
Options length0
MSS1456
Window size65535
Window scale6
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
t13d1515h1_8daaf6152771_0a20fe35d3a55

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn14enus_4a2973d235de_000000000000_0000000000005

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1456_65

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
AO · Angola3
UA · Ukraine2

Network (ASN)

fingerprintco-occurrences
AS37645 · Finstar - Sociedade de Investimento e Participacoes S.A3
AS6876 · TENET Scientific Production Enterprise LLC2