TCP SYN (p0f)

4:240+15:0:1420:mss*42,8:mss,nop,ws,sok,ts:df,id+:0

first seen 2026-07-01 18:46 · last seen 2026-07-01 18:46 · JSON

Decomposed attributes

IP version4
Initial TTL240+15
Options length0
MSS1420
Window sizemss*42
Window scale8
Options layoutmss,nop,ws,sok,ts
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
t13d171000_5b57614c22b0_78e6aca7449b1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_b5e847c80b4c_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
59640_2-1-3-4-8_1420_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3.1 Mobile/15E148 Safari/604.11

Country

fingerprintco-occurrences
FR · France1

Network (ASN)

fingerprintco-occurrences
AS15557 · Societe Francaise Du Radiotelephone - SFR SA1