4-y[.]cc

4-y.cc was registered on June 28, 2025 via Namecheap Inc. The domain is delegated to Cloudflare nameservers ernest.ns.cloudflare.com and karina.ns.cloudflare.com and currently resolves to the IP address 104.21.87.163, which is part of Cloudflare’s edge network. VirusTotal scans have returned detections from 12 of 91 security vendors, indicating that the domain is already associated with malicious activity. The threat type is classified as generic_phishing and the risk level is marked high. The domain remains active as of the reporting date, July 17, 2026. Analysis of the available infrastructure shows a typical fast-flux-style hosting pattern, with Cloudflare providing both DNS resolution and CDN protection, a common choice for phishing operators seeking anonymity and resilience against takedown attempts. The lack of additional public artifacts such as a known landing page, associated email addresses, or observed credential-harvesting endpoints means that the full scope of the campaign cannot be determined at this time. However, the presence of multiple vendor detections and the high-risk classification suggest that the domain is being used to host phishing payloads or to redirect victims to credential-stealing sites. Defenders should prioritize blocking 4-y.cc at the network perimeter and DNS layer, monitor for any outbound connections to the IP address 104.21.87.163, and incorporate the domain into threat-intel feeds. Continuous re-scanning of the domain on sandbox and URL-analysis services is recommended to capture any evolving payloads or changes in hosting configuration.