TCP SYN (JA4T)

64800_2-4-8-1-3_1412_7

first seen 2026-07-01 16:29 · last seen 2026-07-11 15:30 · JSON

Decomposed attributes

TCP window64800
Option kinds2-4-8-1-3
MSS1412
Window scale7

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
t13d3613h1_bcee18a5b459_89ab6efea773240

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_be0d0b335e46_000000000000_000000000000240

TCP SYN (p0f)

fingerprintco-occurrences
6:47+17:0:1412:mss*45,7:mss,sok,ts,nop,ws:flow:0159
6:46+18:0:1412:mss*45,7:mss,sok,ts,nop,ws:flow:049
6:48+16:0:1412:mss*45,7:mss,sok,ts,nop,ws:flow:031
6:45+19:0:1412:mss*45,7:mss,sok,ts,nop,ws:flow:01

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; HackerNewsBG/1.0) AppleWebKit/537.36 (KHTML, like Gecko)240

Country

fingerprintco-occurrences
BG · Bulgaria240

Network (ASN)

fingerprintco-occurrences
AS8866 · Vivacom Bulgaria EAD240