TCP SYN (p0f)

4:118+10:0:1460:8192,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-07-13 12:01 · last seen 2026-07-13 12:01 · JSON

Decomposed attributes

IP version4
Initial TTL118+10
Options length0
MSS1460
Window size8192
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
t12d240600_9295eb73ea51_1f2465c447a91

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn020000_d5c75abc5c2c_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
8192_2-1-3-1-1-4_1460_81

Country

fingerprintco-occurrences
NL · Netherlands1

Network (ASN)

fingerprintco-occurrences
AS49870 · Alsycon B.V.1