TCP SYN (p0f)

6:46+18:0:1440:65535,9:mss,sok,ts,nop,ws:ecn,flow:0

first seen 2026-07-01 09:41 · last seen 2026-09-19 17:36 · JSON

Decomposed attributes

IP version6
Initial TTL46+18
Options length0
MSS1440
Window size65535
Window scale9
Options layoutmss,sok,ts,nop,ws
Quirksecn,flow
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
t12d290700_fc2078a0b8c0_8c06664c3ac59

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_bfa5a9b89dd6_000000000000_0000000000005
ge11nn06en00_3011d71998e2_000000000000_0000000000004

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1440_99

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)9

Country

fingerprintco-occurrences
FI · Finland9

Network (ASN)

fingerprintco-occurrences
AS24940 · Hetzner Online GmbH9