TCP SYN (p0f)

4:110+18:0:1440:8192,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-09-10 03:25 · last seen 2026-09-10 03:25 · JSON

Decomposed attributes

IP version4
Initial TTL110+18
Options length0
MSS1440
Window size8192
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d251100_b78ed14e2fd0_ab7e3b40a6772

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr05en00_f3bb7aa45ec4_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
8192_2-1-3-1-1-4_1440_82

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.151
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_16) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.151

Country

fingerprintco-occurrences
US · United States2

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation2