smtpauth[.]inputecho[.]co

Analysis of smtpauth.inputecho.co shows a newly registered domain created on March 10, 2026 and hosted on Amazon Web Services. The domain resolves to IP address 52.33.207.7, which belongs to ASN 16509 (Amazon.com, Inc.) and is geolocated in the United States. Registration was performed through Porkbun LLC, with authoritative name servers curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, and salvador.ns.porkbun.com.

The web service returns an HTTP 301 redirect and serves a page titled “Get the Funding YouNeed – Fast”. Technical fingerprinting reveals a WordPress stack backed by MySQL and PHP, supplemented by Yoast SEO, Swiper, jQuery, and jQuery Migrate. The site uses a Let’s Encrypt R12 certificate, indicating encrypted HTTPS traffic. Reputation services have assigned a Gridinsoft trust score of 0 / 100, and VirusTotal reports a single positive detection out of 95 scanned vendors.

Threat intelligence categorizes the site as a generic phishing operation with a high risk rating. It is currently listed on three security blocklists and has been actively blocked by PhishDestroy, MetaMask, and SEAL. The combination of a low trust score, a single VirusTotal flag, and the presence of known phishing‑related infrastructure suggests an intent to harvest credentials or financial information, although the exact payload or target audience has not been observed.

Defenders should treat smtpauth.inputecho.co as a malicious host. Immediate actions include adding the domain and its resolving IP to firewall deny lists, updating intrusion‑detection signatures, and monitoring DNS queries for similar Porkbun‑registered subdomains. Continuous observation of any changes to the site’s content or redirection behavior is advised, as the campaign remains active.