auth-signin[.]net

The domain auth-signin.net was registered on February 21, 2026 through Hello Internet Corp and is presently taken offline. DNS resolution points to 172.67.222.245, an address owned by AS13335 Cloudflare, Inc. in the United States. The authoritative nameservers are arvind.ns.cloudflare.com and cheryl.ns.cloudflare.com, indicating the use of Cloudflare’s DNS and edge services. HTTP traffic is served over HTTP/3 and returns a 200 status code; the page title presented by the server is "FASTPANEL," which does not correspond to a known legitimate service and suggests a generic control‑panel front end.

The TLS certificate is issued by Google Trust Services under the WE1 root, confirming that the site employed a valid certificate chain despite its malicious purpose. Security telemetry shows the domain appears on a single blocklist and has been actively blocked by PhishDestroy. VirusTotal analysis recorded detections from 6 of 93 scanning engines, reinforcing the classification as a credential‑phishing site.

The observed indicators—Cloudflare hosting, valid Google‑issued TLS, HTTP/3 support, and the FASTPANEL title—are consistent with recent credential‑phishing infrastructure that leverages reputable CDN providers to obscure origin. Defenders should add auth-signin.net to URL filtering rules, block its IP address 172.67.222.245 at network perimeters, and monitor for any resurgence of the domain or related subdomains. Continuous re‑scanning of the domain on VirusTotal and inclusion in threat‑intel feeds are recommended to capture any future changes in its activity status.