office[.]redstarsoft[.]net

This domain, office.redstarsoft.net, is actively impersonating Microsoft Office login portals to harvest user credentials. Victims who enter their email and password on this site risk immediate account compromise, unauthorized access to corporate or personal data, and potential follow-on attacks such as business email compromise or identity theft. The fake login page closely mimics the legitimate Microsoft Office 365 interface, including logos, color schemes, and form fields, making it difficult for users to detect the deception without technical scrutiny. Analysis indicates the domain was registered on May 11, 2026, through NameSilo, LLC, a registrar frequently abused for phishing infrastructure. It resolves to 185.40.155.16, an IP address hosted in Russia under AS21030 (Cluster LLC), a network with a history of hosting malicious domains. As of the latest scan, 17 out of 95 security vendors on VirusTotal flag office.redstarsoft.net as malicious, with detections including credential phishing and brand impersonation. The domain remains active and is currently blocked by at least one security feed. If you or someone in your organization has visited office.redstarsoft.net and entered login credentials, immediate action is required. First, reset the password for the affected Microsoft account and any other accounts using the same credentials. Enable multi-factor authentication (MFA) if not already active. Review recent account activity for unauthorized logins or changes, and report the incident to your IT security team. If corporate credentials were exposed, initiate an internal investigation to assess potential data breaches. Monitor financial accounts and credit reports for signs of fraud. Organizations should also block the domain and its associated IP (185.40.155.16) at the network level to prevent further access.