TCP SYN (p0f)

4:43+21:0:1410:65535,6:mss,sok,ts,nop,ws::0

first seen 2026-10-15 20:04 · last seen 2026-10-15 20:04 · JSON

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL43+21
Options length0
MSS1410
Window size65535
Window scale6
Options layoutmss,sok,ts,nop,ws
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
t13d1617h1_86a278354501_3cbfd9057e0d1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn12enus_9a9494a1019e_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-8-1-3_1410_61

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (X11; Linux x86_64; rv:156.0) Gecko/20100101 Firefox/156.01

Country

fingerprintco-occurrences
KW · Kuwait1

Network (ASN)

fingerprintco-occurrences
AS42961 · Mobile Telecommunications Company K.S.C.P.1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019,0100,01011