TCP SYN (p0f)

4:112+16:0:1360:mss*44,8:mss,nop,ws,nop,nop,sok::0

first seen 2026-09-10 01:03 · last seen 2026-09-13 08:51 · JSON

Decomposed attributes

IP version	`4`
Initial TTL	`112+16`
Options length	`0`
MSS	`1360`
Window size	`mss*44`
Window scale	`8`
Options layout	`mss,nop,ws,nop,nop,sok`
Payload class	`0`

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)

fingerprint	co-occurrences
`t13d2013h1_2b729b4bf6f3_e24568c0d440`	8
`t13d1812h1_85036bcba153_b26ce05bbdd6`	2

HTTP request (JA4H)

fingerprint	co-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.	8
`ge11nn050000_b223a0ebb0b5_000000000000_000000000000` Match?Exact match in Thumbprint's published controlled catalog captures: python-requests 2.34.2, python-requests 2.33.1, python-requests 2.32.3.The fingerprint page shows the full measured match list. More on the catalog.	2

TCP SYN (JA4T)

fingerprint	co-occurrences
`64240_2-1-3-1-1-4_1360_8`	10

User-Agent

fingerprint	co-occurrences
`curl/8.18.0`	8
`Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/152.0.0.0 Safari/537.36`	2

Country

fingerprint	co-occurrences
`JP` · Japan	10

Network (ASN)

fingerprint	co-occurrences
`AS4713` · NTT DOCOMO BUSINESS,Inc.	9
`AS2514` · NTT PC Communications, Inc.	1