User-Agent

vuln_scanner/3.1.0 (CVE-2026-4020)

first seen 2026-08-06 21:19 · last seen 2026-08-14 12:37 · JSON

Decomposed attributes

Browser / clientvuln_scanner 3.1.0
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

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
t13d191100_9dc949149365_e5728521abd46
t13d191000_9dc949149365_e7c2852226512
t13d131100_f57a46bbacb6_ab7e3b40a677 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.26.6, go-net/http 1.26.5, go-net/http 1.26.4.The fingerprint page shows the full measured match list. More on the catalog.1
t13d141000_cbb2034c60b8_e7c285222651 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.22.12.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn040000_08e7224bf8c7_000000000000_0000000000005
ge11nr040000_08e7224bf8c7_000000000000_0000000000005

TCP SYN (p0f)

fingerprintco-occurrences
4:56+8:0:1460:mss*29,11:mss,sok,ts,nop,ws:df,id+:07
4:51+13:0:1460:mss*44,7:mss,sok,ts,nop,ws:df,id+:01
4:54+10:0:1460:mss*29,11:mss,sok,ts,nop,ws:df,id+:01
4:55+9:0:1460:mss*29,11:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
42340_2-4-8-1-3_1460_119
64240_2-4-8-1-3_1460_71

Country

fingerprintco-occurrences
NL · Netherlands6
US · United States2
PL · Poland1
AD · Andorra1

Network (ASN)

fingerprintco-occurrences
AS48090 · TECHOFF SRV LIMITED7
AS142430 · DIGI VPS2
AS201814 · MEVSPACE sp. z o.o.1