s[.]teams-tk[.]com

On 29 July 2026, s.teams-tk.com was observed as an active phishing infrastructure. The domain was registered three days earlier on 24 July 2026 through REG.RU LLC, indicating a rapid deployment typical of opportunistic campaigns. DNS resolution points to the IPv4 address 188.114.96.3, which is hosted on Cloudflare’s network, as evidenced by the authoritative nameservers iris.ns.cloudflare.com and sage.ns.cloudflare.com. The use of Cloudflare’s DNS services can provide basic DDoS mitigation and hide the true origin of the malicious host.

VirusTotal reports that five of ninety‑one scanned security vendors flagged the domain, demonstrating that a minority of scanners have identified malicious characteristics. The domain is listed on one public security blocklist and is actively blocked by the PhishDestroy feed, confirming that at least one anti‑phishing consortium has taken remediation action. No public page title or SSL certificate details are available in the current intelligence set, and no Safe Browsing or OTX entries have been reported. Consequently, the exact phishing lure, target brand, or credential‑harvesting technique remains unknown.

Analysts should treat the domain as a high‑risk indicator because the combination of recent registration, active status, and partial vendor detections aligns with the high risk rating. Defenders are advised to add 188.114.96.3 and s.teams-tk.com to outbound filtering rules, block DNS resolution for the domain, and monitor for any related traffic to Cloudflare edge nodes. Continuous re‑evaluation of VirusTotal and other reputation services is recommended, as additional detections may emerge. Organizations using email or web gateways should enforce URL filtering that includes the latest PhishDestroy list to ensure that attempts to reach this domain are intercepted.