microsofthelp[.]rbiscam[.]com

This domain is flagged for elevated-risk brand impersonation targeting Microsoft. Analysis indicates it was designed to deceive users into submitting credentials via a fraudulent login portal titled 'Sign in to your Microsoft account,' directly mimicking legitimate authentication workflows. The threat type aligns with credential harvesting and account takeover attempts, leveraging brand trust to facilitate unauthorized access. Infrastructure analysis reveals the domain was registered on August 26, 2025, through GoDaddy.com, LLC, and resolves to the IP address 184.168.100.184, located in Singapore. The domain lacks an SSL certificate, increasing exposure to man-in-the-middle interception. VirusTotal detection shows 18 out of 95 security vendors flagged the domain as malicious. It appears on one security blocklist and was previously blocked by PhishDestroy. The domain is currently offline, though historical activity remains a concern for retrospective threat hunting. Mitigation requires immediate domain blacklisting across security gateways and endpoint protection platforms. Network administrators should block the IP address 184.168.100.184 and monitor for residual connections. Security teams are advised to audit authentication logs for failed or anomalous login attempts referencing this domain, particularly from August 26, 2025 onward. User awareness training should emphasize verification of domain authenticity before entering credentials, focusing on subdomain structure and certificate validation as key indicators of legitimacy.