TCP SYN (p0f)

4:43+21:0:1412:mss*46,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-03 07:08 · last seen 2026-07-03 07:08 · JSON

Decomposed attributes

IP version4
Initial TTL43+21
Options length0
MSS1412
Window sizemss*46
Window scale8
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
t13d191000_9dc949149365_e7c2852226511

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_32287c24fa5b_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64952_2-4-8-1-3_1412_81

User-Agent

fingerprintco-occurrences
curl/7.29.01

Country

fingerprintco-occurrences
HK · Hong Kong SAR China1

Network (ASN)

fingerprintco-occurrences
AS135377 · UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED1