TCP SYN (p0f)

4:56+8:0:1400:mss*20,10:mss,nop,nop,sok,nop,ws:df,id+:0

first seen 2026-07-24 06:48 · last seen 2026-07-24 06:48 · JSON

Decomposed attributes

IP version4
Initial TTL56+8
Options length0
MSS1400
Window sizemss*20
Window scale10
Options layoutmss,nop,nop,sok,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
t13d3112h1_e8f1e7e78f70_d41ae481755e2
t13d2712h1_64b7f6a860f5_d41ae481755e1
t13d1512h1_03f05fccdcaf_d41ae481755e1
t13d2311h1_caf26b1ecd0f_a29327ec888c1
t13d1512h1_784d8d0d0955_d41ae481755e1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn06enus_21ea1759749c_000000000000_0000000000006

TCP SYN (JA4T)

fingerprintco-occurrences
29200_2-1-1-4-1-3_1400_106

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.362
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.361
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.01
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.361

Country

fingerprintco-occurrences
US · United States6

Network (ASN)

fingerprintco-occurrences
AS53667 · FranTech Solutions6