TCP SYN (p0f)

4:36+28:0:1440:mss*44,1:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-09-04 02:22 · last seen 2026-09-04 02:22 · JSON

Decomposed attributes

IP version4
Initial TTL36+28
Options length0
MSS1440
Window sizemss*44
Window scale1
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_0a20fe35d3a51

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-4-8-1-3_1440_11

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
BR · Brazil1

Network (ASN)

fingerprintco-occurrences
AS266075 · E. J. MACHADO DE SOUZA E CIA LTDA ME1