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Microsoft OneNote attachments are being used to spread malware

January 23, 2023

Via: TechRadar

Hackers have discovered a new way to bypass the macro block in Microsoft Office files and still deliver malware to unsuspecting victims through the company’s suit of online collaboration apps.

Security experts at BleepingComputer found freshly distributed phishing emails equipped with OneNote attachments.

OneNote is a digital notetaking app, which people can use to create a sharable content library. It comes as part of the wider Microsoft Office suite, meaning if people have this installed, they can open OneNote files, too. While OneNote’s files, called NoteBooks, don’t support macros, they do support attachments, and that’s what the crooks are now leveraging.

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