TCP SYN (p0f)

4:241+14:0:1400:65535,8:mss,sok,ts,nop,ws:df,id+:0

first seen 2026-07-20 13:34 · last seen 2026-07-30 14:41 · JSON

Decomposed attributes

IP version4
Initial TTL241+14
Options length0
MSS1400
Window size65535
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
t13d4412h1_fd39b124ee10_58ed7828516f2

HTTP request (JA4H)

fingerprintco-occurrences
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)

fingerprintco-occurrences
65535_2-4-8-1-3_1400_82

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 6.1; ) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36 AOLShield/83.0.4103.01
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/82.0.4083.0 Safari/537.361

Country

fingerprintco-occurrences
IQ · Iraq2

Network (ASN)

fingerprintco-occurrences
AS199739 · Earthlink Telecommunications Equipment Trading & Services DMCC2