TCP SYN (p0f)

6:48+16:0:1412:mss*45,7:mss,sok,ts,nop,ws:flow:0

first seen 2026-07-01 19:27 · last seen 2026-07-07 08:33 · JSON

Decomposed attributes

IP version6
Initial TTL48+16
Options length0
MSS1412
Window sizemss*45
Window scale7
Options layoutmss,sok,ts,nop,ws
Quirksflow
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
t13d3613h1_bcee18a5b459_89ab6efea77331

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn050000_be0d0b335e46_000000000000_00000000000031

TCP SYN (JA4T)

fingerprintco-occurrences
64800_2-4-8-1-3_1412_731

User-Agent

fingerprintco-occurrences
Mozilla/5.0 (compatible; HackerNewsBG/1.0) AppleWebKit/537.36 (KHTML, like Gecko)31

Country

fingerprintco-occurrences
BG · Bulgaria31

Network (ASN)

fingerprintco-occurrences
AS8866 · Vivacom Bulgaria EAD31