TCP SYN (p0f)

6:43+21:0:1440:65535,9:mss,nop,nop,sok,nop,ws:flow:0

first seen 2026-06-30 04:09 · last seen 2026-09-26 03:29 · JSON

Decomposed attributes

IP version6
Initial TTL43+21
Options length0
MSS1440
Window size65535
Window scale9
Options layoutmss,nop,nop,sok,nop,ws
Quirksflow
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_8c06664c3ac513

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06en00_3011d71998e2_000000000000_0000000000009
ge11nn040000_bfa5a9b89dd6_000000000000_0000000000004

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-1-4-1-3_1440_913

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)13

Country

fingerprintco-occurrences
FR · France13

Network (ASN)

fingerprintco-occurrences
AS51167 · Contabo GmbH13