The vulnerability, discovered by EasyOptOuts co-founder Tyler Murphy, allows individuals with knowledge of the exploit to uncover the real email address masked by the anonymous alias.
ARToken operates as an affiliate of the EvilTokens phishing-as-a-service operation, which targets Microsoft 365 accounts and bypasses multi-factor authentication.
The campaign, involving nearly 8.9 million email addresses and linked to Romanian threat actors, utilized a compromised Bolivian government website to host the fraudulent Boots checkout page.
Attackers are leveraging Amazon SES, a legitimate and trusted service, to send malicious emails that bypass authentication checks like SPF, DKIM, and DMARC.
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