opneseaus[.]gitbook[.]io

opneseaus.gitbook.io is currently active and hosts a site titled “OpenSea | Login | OpenSea USA”, indicating a direct attempt to impersonate the OpenSea marketplace. The domain was created on 30 March 2014 and is registered through Cloudflare, Inc. DNS resolution points to IP 172.64.147.209, which belongs to ASN 13335 (Cloudflare, Inc.) and is geolocated in the United States. The HTTP response is a 307 redirect, and the server advertises HTTP/3 support. SSL termination is provided by a Google Trust Services certificate issued to WE1, showing a valid TLS chain but offering no mitigation against the underlying deception. The infrastructure is flagged by a single security blocklist and is listed by PhishDestroy as blocked.

VirusTotal reports that 11 of 95 scanning engines have marked the domain as malicious, reinforcing the suspicion of abusive activity. Technical reconnaissance reveals the use of Cloudflare’s CDN and name servers dahlia.ns.cloudflare.com and hugh.ns.cloudflare.com, both typical of Cloudflare‑hosted services. Gridinsoft assigns a trust score of 0 out of 100, indicating a high confidence in malicious intent. The known scam type is described as a crypto scam, and the impersonated brand is OpenSea.

No additional intelligence such as Safe Browsing or OTX identifiers is provided, and the exact payload or credential‑capture mechanisms have not been observed. Defenders should block the domain at network perimeter, add it to local blacklists, and monitor for any outbound connections to the associated IP address. Endpoint protection should be updated to include the 11 vendor detections, and security teams should advise users not to interact with any login prompts referencing OpenSea that originate from this URL. Continuous monitoring of the DNS and IP reputation is recommended, as the hosting provider may shift the underlying IP without notice.