TCP SYN (p0f)

4:120+8:0:1360:mss*48,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-07-16 17:45 · last seen 2026-07-16 17:45 · JSON

Decomposed attributes

IP version4
Initial TTL120+8
Options length0
MSS1360
Window sizemss*48
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t12d860600_e18388e7f3a3_a1e9356827951

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn05enus_dff23709e538_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65280_2-1-3-1-1-4_1360_81

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.11

Country

fingerprintco-occurrences
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS213790 · Limited Network LTD1