TCP SYN (p0f)

4:44+20:0:1460:mss*20,9:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-08-01 08:49 · last seen 2026-08-01 09:05 · JSON

Decomposed attributes

IP version4
Initial TTL44+20
Options length0
MSS1460
Window sizemss*20
Window scale9
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
t12d280700_b75078996b15_6b16546de8022

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_32287c24fa5b_000000000000_0000000000002

TCP SYN (JA4T)

fingerprintco-occurrences
29200_2-4-8-1-3_1460_92

User-Agent

fingerprintco-occurrences
curl/7.29.02

Country

fingerprintco-occurrences
CN · China2

Network (ASN)

fingerprintco-occurrences
AS38365 · Beijing Baidu Netcom Science and Technology Co., Ltd.2