mail[.]rainbetau[.]net

mail.rainbetau.net is currently flagged as a generic phishing infrastructure under investigation. The domain was registered on 17 September 2025 through Hosting Concepts B.V. d/b/a Registrar.eu and is delegated to Cloudflare name servers leah.ns.cloudflare.com and pablo.ns.cloudflare.com. DNS resolution points to the IP address 188.114.96.3, which belongs to Cloudflare’s edge network, indicating the use of a content‑delivery or masking service. The domain remains active as of the assessment date (15 July 2026). No public malware detections have been reported, but the absence of detections does not constitute evidence of benign intent. Evidence is limited to registration and infrastructure details; the actual payload, landing page content, and targeted brand have not been disclosed. Consequently, confidence in the threat attribution relies on the observed phishing classification and the typical abuse patterns associated with short‑lived, Cloudflare‑proxied domains. Defenders should consider adding the domain to blocklists, monitoring DNS queries for the associated IP, and employing sink‑hole techniques to disrupt potential command‑and‑control or credential‑harvesting activity. Ongoing collection of page content and email samples is recommended to refine detection signatures and to confirm the scope of the campaign.