TCP SYN (p0f)
4:44+20:0:1300:mss*44,8:mss,nop,ws,nop,nop,sok:df,id+:0
first seen 2026-07-12 20:04 · last seen 2026-07-12 20:04 · JSON
Decomposed attributes
| IP version | 4 |
|---|---|
| Initial TTL | 44+20 |
| Options length | 0 |
| MSS | 1300 |
| Window size | mss*44 |
| Window scale | 8 |
| Options layout | mss,nop,ws,nop,nop,sok |
| Quirks | df,id+ |
| Payload class | 0 |
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)
| fingerprint | co-occurrences |
|---|---|
t13d1617h2_86a278354501_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 152.0.3, +10 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
HTTP request (JA4H)
| fingerprint | co-occurrences |
|---|---|
ge20nn11ruru_3901d4197baf_000000000000_000000000000 | 1 |
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
64240_2-1-3-1-1-4_1300_8 | 1 |
User-Agent
| fingerprint | co-occurrences |
|---|---|
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
RU · Russia | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS25159 · PJSC MegaFon | 1 |