TCP SYN (p0f)

4:42+22:0:1404:65535,8:mss,sok,ts,nop,ws::0

first seen 2026-09-04 05:42 · last seen 2026-09-04 05:42 · JSON

Decomposed attributes

IP version4
Initial TTL42+22
Options length0
MSS1404
Window size65535
Window scale8
Options layoutmss,sok,ts,nop,ws
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_0a20fe35d3a51

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1404_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
AU · Australia1

Network (ASN)

fingerprintco-occurrences
AS1221 · Telstra Limited1