app-gyk-whatsappcc[.]com

app-gyk-whatsappcc.com is currently offline but historical data indicates it was used for a Facebook‑related brand impersonation campaign. The domain was registered on 5 October 2025 through Dominet (HK) Limited and is hosted on a Korean address (AS205960 HDTIDC LIMITED) at 103.254.73.209. No TLS certificate was observed, meaning any traffic would have been transmitted in cleartext. The authoritative name servers are ns1.domainnamedns.com, ns2.domainnamedns.com, ns3.domainnamedns.com, and ns4.domainname, which are commonly associated with fast‑flux or disposable hosting services. The page title retrieved from the site—“whatsapp(国际版)官网| 隐私设置：保护你的个人信息安全”—references a WhatsApp international version and privacy settings, yet the brand target listed is Facebook, confirming a cross‑platform impersonation attempt.

Threat‑intel aggregators have flagged the domain on a single security blocklist and it appears in 18 AlienVault OTX pulses, indicating moderate propagation within threat‑sharing communities. Fifteen of ninety‑five VirusTotal scanners flagged the host as malicious, and Gridinsoft assigned a trust score of 0 / 100, while Scamadviser reported a trust score of 1 / 100, both reflecting a high confidence of abuse. PhishDestroy has explicitly blocked the domain, reinforcing its categorisation as a social‑media phishing site. Because the domain is no longer resolving, active mitigation focuses on pre‑emptive controls.

Network defenders should add the domain and its resolved IP 103.254.73.209 to DNS‑sinkhole or firewall deny lists, and ensure that any outbound connections to the listed nameservers are inspected or blocked. Email gateways should treat any messages containing links to this domain as malicious, and security awareness training should highlight the misuse of Facebook branding combined with unrelated WhatsApp terminology.