TCP SYN (p0f)

4:54+10:0:1460:mss*29,11:mss,nop,nop,sok,nop,ws::0

first seen 2026-09-22 13:09 · last seen 2026-10-01 08:29 · JSON

Decomposed attributes

IP version4
Initial TTL54+10
Options length0
MSS1460
Window sizemss*29
Window scale11
Options layoutmss,nop,nop,sok,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_8c06664c3ac56

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_bfa5a9b89dd6_000000000000_0000000000003
ge11nn06en00_3011d71998e2_000000000000_0000000000003

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-1-1-4-1-3_1460_116

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)6

Country

fingerprintco-occurrences
DE · Germany6

Network (ASN)

fingerprintco-occurrences
AS197540 · netcup GmbH6