TCP SYN (p0f)

4:46+18:0:1440:65535,0:mss,?34,nop,nop:df,id+:0

first seen 2026-08-04 13:34 · last seen 2026-09-19 20:44 · JSON

Decomposed attributes

IP version4
Initial TTL46+18
Options length0
MSS1440
Window size65535
Window scale0
Options layoutmss,?34,nop,nop
Quirksdf,id+
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
t13d1516h1_8daaf6152771_d8a2da3f94cd11

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn14enus_f373e780f670_000000000000_0000000000005
po11nr15enus_09e4ed5d8ed5_000000000000_0000000000003
po11nr14enus_6397384559be_000000000000_0000000000002
ge11nn12enus_8eff6c7bee97_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-34-1-1_1440_0011

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.363
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.362
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.362
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States11

Network (ASN)

fingerprintco-occurrences
AS8075 · Microsoft Corporation11