co-whatapp[.]hl[.]cn

Analysis indicates that co-whatapp.hl.cn is an active credential‑phishing infrastructure targeting WhatsApp users. The domain was registered on 28 June 2026 by 万商云集（成都）科技股份有限公司 and resolves to 154.206.233.28, an address hosted by Asline Limited in Hong Kong. DNS is served by ns1.kenpains.com and ns2.kenpains.com. The web server presents a valid Let's Encrypt certificate, uses Nginx with HSTS and HTTP/3, and returns HTTP 200 for the landing page whose title reads “WhatsApp网页版 - 完整指南与使用方法”. VirusTotal reports 18 of 91 scanners flagging the host, and the domain is listed on at least one public blocklist and has been blocked by PhishDestroy. Gridinsoft assigns a trust score of 0 / 100, reinforcing the malicious assessment. The site is categorized as generic_phishing with a high risk rating and is currently active. Uncertainty remains regarding the exact content served beyond the title; no direct observation of credential‑capture forms is available. Defenders should treat the domain as malicious, block DNS resolution and HTTP traffic to 154.206.233.28, add the domain and its IP to perimeter deny lists, and monitor email gateways for messages containing the “WhatsApp网页版” phrase or links to the domain. Continuous threat‑intel feeds should be consulted for any new indicators, and incident response teams should be prepared to investigate compromised WhatsApp credentials that may originate from this infrastructure.