The scan of winso.tw on 15 Aug 2026 reached no verdict either way (score -12). Too little was captured to judge it, which is an unknown rather than a pass.

How was winso.tw checked?

A static pass resolved DNS, captured TLS and headers and followed the redirect chain, and where the standard tier allows, a headless browser rendered the page and recorded every request. Egress is SSRF-locked. Signatures that matched only page text are weighted far below one that matched a served file, because a page documenting malware matches the same rules.

winso.tw - URL scan, 15 Aug 2026

MalwareAnalyzer by Cyble scanned winso.tw and returned a unknown verdict (score -12). The page resolved to 104.21.4.139 on Cloudflare, Inc. in US. 2 domains and 2 IPs were contacted, over 1 HTTP request. The request followed 1 redirect before landing. This is a point-in-time observation from 15 Aug 2026; the page may have changed since.

Scan result

Verdict: unknown (score -12) · Confidence 15%
Scanned URL: http://winso.tw/userfiles/file/36686805038.pdf
Domain: winso.tw · IP: 104.21.4.139 · AS13335 · US
Server: cloudflare
Page title: 404 Not Found
HTTP status: 404 · text/html
TLS issuer: C=US, O=Google Trust Services, CN=WE1 · valid to Oct 19 08: · subject CN=winso.tw
HTTP requests captured: 1
Scan tier: standard · observed 2026-08-15 03:03:31 UTC

Redirect chain

http://winso.tw/userfiles/file/36686805038.pdf
https://winso.tw/userfiles/file/36686805038.pdf

Antivirus & YARA (0 of 44 engines)

No engine flagged this page's content.

Why this verdict

Valid TLS, no impersonation or off-origin credential post

Detected technologies

Cloudflare
Cloudflare Insights

Contacted infrastructure

104.21.4.139 - AS13335 Cloudflare, Inc. (United States)
172.67.154.29 - AS13335 Cloudflare, Inc. (United States)

Observed indicators

winso.tw
static.cloudflareinsights.com
104.21.4.139
172.67.154.29
https://winso.tw/userfiles/file/36686805038.pdf
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496

Other scans of winso.tw (1)

This host has been scanned before. Each scan is a separate observation, so a verdict here does not carry over to the others.

19 Aug 2026 - unknown · https://winso.tw/userfiles/file/11518049661.pdf

Questions about winso.tw

Is winso.tw safe?: The scan of winso.tw on 15 Aug 2026 reached no verdict either way (score -12). Too little was captured to judge it, which is an unknown rather than a pass.
How was winso.tw checked?: A static pass resolved DNS, captured TLS and headers and followed the redirect chain, and where the standard tier allows, a headless browser rendered the page and recorded every request. Egress is SSRF-locked. Signatures that matched only page text are weighted far below one that matched a served file, because a page documenting malware matches the same rules.

Scanned at the standard tier - see how URL scanning works.

Scan another URL · Latest analyzed threats · All scans of winso.tw

Scanned on MalwareAnalyzer by Cyble · Open interactive scan