csstafs[.]com

The domain csstafs.com was registered on May 26, 2025 through NICENIC INTERNATIONAL GROUP CO., LIMITED and is hosted on the IP address 104.21.57.105. Authority for the zone is provided by Cloudflare name servers gabe.ns.cloudflare.com and sharon.ns.cloudflare.com, indicating the use of a reputable CDN service for traffic delivery. Threat intelligence recorded on July 29, 2026 shows that the domain is flagged by PhishDestroy and appears on a single external security blocklist, suggesting that at least one security vendor has taken automated mitigation action.

VirusTotal analysis reports that six of ninety‑one scanning engines identify the domain as malicious, a modest but notable detection ratio that reinforces the suspicion of illicit activity. The available data does not include a page title, SSL certificate details, HTTP response codes, Safe Browsing verdicts, or any Open Threat Exchange (OTX) references, leaving the precise nature of the hosted content and the exact phishing payload undefined. Consequently, while the infrastructure signals malicious intent, the lack of publicly observable page attributes prevents a full behavioral profile.

Defenders should treat csstafs.com as a high‑confidence indicator of credential harvesting activity: immediately block DNS resolution and outbound connections to 104.21.57.105, add the domain to URL filtering and email security policies, and monitor for any internal references to the Cloudflare name servers associated with the domain. Continued observation of detection updates from additional vendors is advised to capture any escalation in detection counts or new blocklist listings.