TCP SYN (p0f)

4:42+22:0:1400:65535,8:mss,nop,ws,nop,nop,sok,nop,nop,ts::0

first seen 2026-09-04 16:21 · last seen 2026-09-04 16:21 · 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 TTL42+22
Options length0
MSS1400
Window size65535
Window scale8
Options layoutmss,nop,ws,nop,nop,sok,nop,nop,ts
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
t13d1515h1_8daaf6152771_de4a06bb82e31

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn13enus_9db22d02e17a_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4-1-1-8_1400_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.361

Country

fingerprintco-occurrences
NG · Nigeria1

Network (ASN)

fingerprintco-occurrences
AS29465 · MTN NIGERIA Communication limited1