Threats Tagged 'application impersonation'

This analysis reveals the growing threat of malicious OAuth applications in Microsoft Entra ID, which attackers use for persistence and privilege escalation. The report details how these apps blend in with legitimate integrations, making detection challenging. It describes the creation of OAuth Apps Scout, an automated detection pipeline that identifies emerging malicious OAuth apps. The research uncovered multiple campaigns, including one involving 19 apps impersonating well-known brands. The report compares tactics from 2019 to 2025, showing an evolution in attacker strategies from Microsoft impersonation to third-party SaaS spoofing. It concludes with actionable defense strategies for organizations to protect against these threats.

MediumCampaignUnited StatesCanadaUnited Kingdom+8#identity security#application impersonation#cloud security

Proofpoint has uncovered a sophisticated phishing campaign utilizing fake Microsoft OAuth applications to bypass multifactor authentication and steal credentials. The threat actors impersonate various enterprise apps like RingCentral, SharePoint, Adobe, and DocuSign to lure victims. The attack chain involves OAuth app creation, redirects to malicious URLs, and the use of attacker-in-the-middle phishing kits, predominantly Tycoon. This technique has been observed in email campaigns with over 50 impersonated applications, targeting multiple industries. The campaign's goal is to gain access to Microsoft 365 accounts, potentially for information gathering, lateral movement, malware installation, or further phishing attacks.

MediumMalwareUnited KingdomGermanyFrance+5#phishing#oauth#application impersonation