whatscnus[.]cyou

The domain whatscnus.cyou was created on February 21, 2026 and is currently reported as taken offline. Registration was performed through Gname.com Pte. Ltd., and the domain resolves to the IP address 104.21.29.230, which belongs to the Cloudflare network (AS13335) located in the United States. Nameserver records show A.SHARE-DNS.COM and B.SHARE-DNS.NET as authoritative servers. The site presented a page title of "楽天会員 ログイン," indicating an attempt to impersonate a Rakuten account login portal.

VirusTotal analysis returned 16 positive detections out of 93 scanned security vendors, reflecting a moderate level of consensus among scanners that the host is malicious. Gridinsoft assigned a trust score of zero out of one hundred, and the domain appears on a single known security blocklist, where it has also been flagged by PhishDestroy. AlienVault OTX lists the domain in two separate threat intelligence pulses, confirming that it has been observed within broader phishing campaigns. The SSL certificate is identified as "WE1," but no further validation details are provided.

Overall, the evidence points to a targeted phishing operation aimed at harvesting Rakuten credentials. Defenders should continue to block the domain at network perimeter devices, update endpoint detection rules with the observed hash and URL indicators, and monitor for any resurrection attempts using the same registrar or IP range. Additional investigation should focus on any payloads or credential harvesting mechanisms that may have been delivered before the takedown, as the current data set does not reveal post‑exploitation activity.