Phishing Series 2026: EvilTokens Refresh Token Reuse Followed by Mailbox Rule Abuse
Detects a sequence of suspicious activities associated with EvilTokens-style session hijacking. This includes the identification of non-interactive sign-in events involving the redemption of a refresh token without secondary MFA, followed by the creation or modification of Exchange Online mailbox rules to facilitate unauthorized email forwarding or exfiltration.
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