railgun-privacy[.]gitbook[.]io

This domain, railgun-privacy.gitbook.io, is currently flagged as a high‑risk brand‑impersonation site targeting Arbitrum. Infrastructure analysis shows the hostname resolves to 172.64.147.209, an address owned by Cloudflare, Inc. (AS13335) located in the United States. The domain uses Cloudflare‑provided nameservers dahlia.ns.cloudflare.com and hugh.ns.cloudflare.com, and the TLS certificate is issued by Google Trust Services under the WE1 root, confirming a valid HTTPS handshake. HTTP requests receive a 307 temporary redirect response, and the page title reported by passive scanners is “Overview | Wiki”, which does not disclose any Arbitrum‑related content but suggests a generic documentation layout. The site is built on GitBook and also leverages Google Cloud, Vercel, HSTS, Google Cloud Trace and HTTP/3, indicating a modern stack that may be used to host malicious content while appearing legitimate.

The brand indicator list identifies the domain as impersonating Arbitrum, and the scam classification is recorded as a crypto‑scam. The domain was created on 30 March 2014 and is registered through Cloudflare, Inc. The Gridinsoft trust score of 0 / 100 reflects a lack of confidence in the host’s reputation. Detection telemetry shows the domain appears on a single security blocklist and is actively blocked by PhishDestroy. VirusTotal scans have returned detections from two of ninety‑five vendors, reinforcing the malicious assessment. Defenders should treat any traffic to railgun-privacy.gitbook.io as hostile.

Blocking at the DNS or proxy layer is advised, and existing security controls that reference the listed blocklist should be updated to include the domain. Continuous monitoring of the IP address 172.64.147.209 for any new payloads or command‑and‑control activity is recommended, as the underlying Cloudflare infrastructure can be reused for other campaigns.