TCP SYN (p0f)

4:48+16:0:1424:65535,9:mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws:df,id+:0

first seen 2026-08-01 12:54 · last seen 2026-08-01 12:54 · JSON

Decomposed attributes

IP version4
Initial TTL48+16
Options length0
MSS1424
Window size65535
Window scale9
Options layoutmss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,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
t13d1812h1_85036bcba153_b26ce05bbdd61

HTTP request (JA4H)

fingerprintco-occurrences
ge11nr050000_b223a0ebb0b5_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-4-1-1-1-1-1-1-1-1-1-1-1-3_1424_91

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.14 (KHTML, like Gecko) Chrome/10.0.601.0 Safari/534.141

Country

fingerprintco-occurrences
CN · China1

Network (ASN)

fingerprintco-occurrences
AS45090 · Shenzhen Tencent Computer Systems Company Limited1