TCP SYN (p0f)

4:39+25:0:1460:mss*20,7:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-06-15 02:43 · last seen 2026-06-15 02:47 · JSON

Decomposed attributes

IP version4
Initial TTL39+25
Options length0
MSS1460
Window sizemss*20
Window scale7
Options layoutmss,sok,ts,nop,ws
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
t12d490600_730fb1b0ac6a_a1e9356827954

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06zhcn_2d855731be57_000000000000_0000000000004

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.27 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/601.1.272
Mozilla/5.0 (X11; U; Linux x86_64; it; rv:1.9.1.9) Gecko/20100330 Fedora/3.5.9-2.fc12 Firefox/3.5.91
Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.101

Country

fingerprintco-occurrences
CN · China4

Network (ASN)

fingerprintco-occurrences
AS4811 · China Telecom (Group)4