TCP SYN (p0f)

4:42+22:0:1424:mss*29,9:mss,sok,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,nop,ws:df,id+:0

first seen 2026-08-07 04:56 · last seen 2026-08-07 05:36 · JSON

Decomposed attributes

IP version4
Initial TTL42+22
Options length0
MSS1424
Window sizemss*29
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
t13d1516h2_8daaf6152771_e5627efa2ab14

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr100000_3a9ba06c504b_000000000000_0000000000003
ge20nn110000_f553327a6567_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:256|m,a,s,p1
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|1:1:0:220|m,a,s,p1
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|3:1:0:220|m,a,s,p1
1:65536;2:0;3:1000;4:6291456;6:262144|15663105|5:1:0:220|m,a,s,p1

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-1-1-1-1-1-1-1-1-1-1-1-3_1424_94

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Mobile Safari/537.36 MicroMessenger/7.0.14

Country

fingerprintco-occurrences
CN · China4

Network (ASN)

fingerprintco-occurrences
AS134543 · China Unicom Guangdong IP network4