TCP SYN (p0f)

4:108+20:0:1360:mss*44,8:mss,nop,ws,nop,nop,sok::0

first seen 2026-08-30 06:35 · last seen 2026-09-11 21:48 · JSON

Decomposed attributes

IP version4
Initial TTL108+20
Options length0
MSS1360
Window sizemss*44
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
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
t13d1713h1_ab0a1bf427ad_89ab6efea7731
t13d2012h1_2b729b4bf6f3_9e7b989ebec81

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn030000_fe444ad14866_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: curl 8.16.0, curl 7.88.1, curl 8.21.0, +1 more.The fingerprint page shows the full measured match list. More on the catalog.1
po11nn060000_f35f2e0a87d7_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
64240_2-1-3-1-1-4_1360_82

User-Agent

fingerprintco-occurrences
curl/8.7.11
Python-urllib/3.141

Country

fingerprintco-occurrences
NL · Netherlands1
JP · Japan1

Network (ASN)

fingerprintco-occurrences
AS202412 · Omegatech LTD1
AS4725 · SoftBank Corp.1