TCP SYN (p0f)

4:51+13:0:1460:65535,12:mss,sok,ts,nop,ws::0

first seen 2026-07-22 01:43 · last seen 2026-07-22 01:43 · JSON

Decomposed attributes

IP version4
Initial TTL51+13
Options length0
MSS1460
Window size65535
Window scale12
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
t12d290700_fc2078a0b8c0_8c06664c3ac52

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_bfa5a9b89dd6_000000000000_0000000000001
ge11nn030000_dd98166e0881_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1460_122

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)2

Country

fingerprintco-occurrences
DE · Germany2

Network (ASN)

fingerprintco-occurrences
AS3209 · Vodafone GmbH2