daysiqueira[.]github[.]io

This domain is flagged as a high-risk phishing site specializing in credential harvesting through a fake Microsoft login portal. Analysis indicates the site is designed to mimic legitimate authentication pages, tricking users into submitting sensitive account details under false pretenses. The threat type is classified as generic_phishing with a focus on brand impersonation, specifically targeting Microsoft services to exploit user trust in recognized corporate identities. Infrastructure analysis reveals the domain daysiqueira.github.io resolves to the IP address 185.199.108.153, a host commonly associated with content delivery networks but increasingly leveraged for malicious purposes. The domain is registered through GitHub, Inc., utilizing their GitHub Pages service, which provides SSL encryption via Let's Encrypt. Despite the legitimate appearance of the SSL certificate, the domain has been flagged by 4 out of 95 security vendors on VirusTotal, indicating a confirmed malicious classification. No creation date is publicly disclosed for this GitHub-hosted subdomain, but its continued activity and detection by multiple security engines underscore its operational status as an active threat. Mitigation steps for this specific threat type include immediate blocking of the domain and its associated IP address at the network perimeter. Organizations should deploy email and web filtering rules to prevent user access to daysiqueira.github.io and similar GitHub Pages subdomains exhibiting phishing characteristics. End-user training should emphasize verifying URL authenticity before entering credentials, particularly for login portals mimicking Microsoft or other high-value brands. Security teams are advised to monitor for compromised accounts if any credentials were previously submitted to this site, as harvested data is likely exfiltrated to attacker-controlled infrastructure for immediate exploitation.