m[.]sdlx777[.]cn

Analysis indicates that the domain m.sdlx777.cn is actively hosting a generic phishing campaign and is assigned a high risk rating. The domain was registered on March 13, 2026 through Alibaba Cloud (阿里巴巴云计算（北京）有限公司) and began resolving to the public address 172.247.129.174 within the same year. The IP belongs to ASN AS40065 operated by CNSERVERS LLC and is geolocated in the United States. Infrastructure assessment shows the web server is powered by Nginx and serves content built with Bootstrap, Slick, and jQuery. The site enforces HTTP Strict Transport Security and negotiates HTTP/3 connections, while presenting a Let’s Encrypt R12 certificate. DNS resolution is provided by ns1.judns.com and ns2.judns.com. The HTTP response code is 200 and the page title returned is “Home”, suggesting a minimal landing page used to collect credentials. Threat intelligence sources corroborate the phishing classification. VirusTotal scans have flagged the domain in 17 of 95 security engines, and the domain is listed on a single public blocklist. PhishDestroy has already blocked the host, indicating that at least one defensive feed is aware of its activity. No additional payloads or compromised host details have been published, leaving the exact lure and targeted brand ambiguous. Defenders should immediately block m.sdlx777.cn at DNS and proxy layers, and consider blacklisting the associated IP 172.247.129.174. Monitoring for outbound connections to the IP, as well as traffic to the identified nameservers, can help detect compromised clients. Updating intrusion‑prevention signatures to flag HTTP/3 traffic to this host and deploying sinkhole redirects for the “Home” page URL are recommended mitigation steps.