TCP SYN (p0f)

6:55+9:0:1440:mss*30,9:mss,nop,ws:flow:0

first seen 2026-06-28 06:34 · last seen 2026-07-06 00:14 · JSON

Decomposed attributes

IP version6
Initial TTL55+9
Options length0
MSS1440
Window sizemss*30
Window scale9
Options layoutmss,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
t12d130600_2d7513195f68_e51b7354d87f2

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr040000_88d30a62b7ad_000000000000_0000000000001
ge11nr040000_e1d2031bdfea_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
43200_2-1-3_1440_91

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:140.0) Gecko/20100101 Firefox/140.01
Mozilla/5.0 (Windows NT 10.0; rv:110.0) Gecko/20100101 Firefox/110.01

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS6939 · Hurricane Electric LLC2