TCP SYN (p0f)

4:110+18:0:1460:65535,8:mss,nop,ws,nop,nop,sok:df,id+,ecn:0

first seen 2026-06-15 11:34 · last seen 2026-09-13 08:13 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

IP version4
Initial TTL110+18
Options length0
MSS1460
Window size65535
Window scale8
Options layoutmss,nop,ws,nop,nop,sok
Quirksdf,id+,ecn
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
t13d201100_2b729b4bf6f3_36bf25f296df3
t13d1813h1_85036bcba153_d339722ba4af1

HTTP request (JA4H)

fingerprintco-occurrences
ge11nn020000_3ed38b250d3d_000000000000_0000000000001
ge11nn030000_b0d6a43aa599_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 5.1.26100.33296, powershell 5.1.26100.33158, powershell 5.1.26100.32995.The fingerprint page shows the full measured match list. More on the catalog.1
ge11nr07enus_54bb830d8abb_000000000000_0000000000001
ge11nn040000_5b1e8b5f4d2d_000000000000_0000000000001

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-1-1-4_1460_83

User-Agent

fingerprintco-occurrences
Mozilla/5.01
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.361
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.361
wp2shell-rce/1.01

Country

fingerprintco-occurrences
FR · France2
DE · Germany1
ID · Indonesia1

Network (ASN)

fingerprintco-occurrences
AS16276 · OVH SAS2
AS8560 · IONOS SE1
AS140389 · PT Dewa Bisnis Digital1